Sheet 1: Issues

	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	

		
Customer Issue ID
		
Status
		
Incident No. 
		
Incident Priority (P1 or P2)
		
Defect No.
		
CR Reference
		
Comms Reference
		
Issue Title
		
Customer Impact
		
Issue Description
		
Primary Process Impacted
		
Customer Segments Impacted
		
Cause
		
Date Detected
		
Planned Issue Resolution Date
		
Resolution RAG Status
		
Resolution/Deployment date
	
	

		
1
		
Closed
		
N/A
		
N/A
		
N/A
		
Mod 0658 / XRN4695
		


		
Levels & volatility of Unidentified Gas (UIG)
		
Unpredictable UIG gas nominations & gas allocations 
		
Levels & volatilty with UIG between D-5 of the gas day to GFD+5 and beyond D+5 close-out in
extended reconciliation periods which create the need for Shippers to account for UIG until eventually
reconciled.
		
UIG
		
All Shippers
		
Various: Incorrect DM reads used to calculate energy, estimated DM reads to calculate energy, issues with data that feeds UIG (CVs, weather data).   
		
6/1/2017
		
N/A
		
Closed
		
Link to latest update on Xoserve.com: https://www.xoserve.com/media/7581/uig-task-force-update-14th-november.pdf 
	
	

		
2
		
Open
		
N/A
		
N/A
		
Multiple
		
N/A
		
 
		
Amendment Invoice supporting information (AML & ASP files) 
		
Incorrect reconciliation charges and unable to validate the invoice due to mismatches on the supporting information files

Cash flow for Distribution Networks 
		
A number of functional defects and integration issues are causing presentation and charge calculation issues within the AMS invoice.  
		
Invoice - Amendment 
		
Shippers & Networks
		
Various: system functionality, manual workarounds. Defects raised. 
		
7/1/2017
		
Ongoing until defects & exceptions are manageable
		
Backlog of SSP Exceptions & 3 exceptions where we do not have a plan for resolution 
		

Latest updates provided on Xoserve.com: https://www.xoserve.com/services/issue-management/amendment-invoice/ and on Joint Office under Contract Management Committee (CoMC) meetings: https://www.gasgovernance.co.uk/DSC-Contract 
	
	

		
3
		
Closed
		


		
N/A
		
 
		


		


		
Network Reports - providing aggregate AQ, SOQ & CSEP portfolio information (BOPRI & SCH606)
		


		
The BOPRI & SCH606 reports are issued to DNs monthly (BOPRI on 28th & SCH606 on the 1st). There have been issues with both reports including the December report which DNs use to set their transportation rates for the 12 months commencing 1st April. BOPRI shows all 'rolling' AQs, SCH606 all CSEP SOQs. 

Updated reports issued on the 11th January however, due to the difference in the reports Networks were not confident with the reports issued in January.
		
Reporting
		
DN's
		


		
11/12/2017
		


		
Closed
		


	
	

		
4
		
Closed
		
807068
		
N/A
		
1491

		
N/A
		


		
Data issues relating to transfer of ownership process
		
Incorrect data submitted to Shippers on the transfer of ownership notification / response files. 
Defect 1491: Incorrect rejection code issued in the Confirmation response file
 
		
1491: CNF00003 rejection code has been decommissioned as part of Nexus but the CFR file is being issued in error when the Offer is not in correct status. OFF00016 rejection code should be send in place of CNF00003

		
Transfer of Ownership
		
Shippers & Networks
		
TBC
		
Nov-19
		
Nov-20
		
Closed
		

Defect 1491/60983: Deployed 13th November 2020
	
	

		
5
		
Closed
		
950723
		
P2
		
N/A
		
N/A
		


		
Daily Read file (.MDR) not issued before 14:00 hrs.  
		


		
Delay in submitting the daily reads file to Shippers (.MDR) file for Class 1 meter points. 
		
Read process
		
All Shippers
		
Issue caused due to defect deployment performed affecting daily reads process.  
		
19/01/2018
		


		
Closed
		


	
	

		
6
		
Closed
		


		
N/A
		
 
		


		


		
Missing Read files where the meter exchange takes place on same date as transfer date
		


		
Transfer read files are not issued to the Shipper where there has been a meter exchange on the same day as a shipper transfer
		
Read process
		
All Shippers
		


		
12/02/2018
		


		
Closed
		


	
	

		
7
		
Closed
		
N/A
		
N/A
		
N/A
		


		


		
The number of Must Reads has increased significantly 
		


		
- DNs raised the issue that the value on the invoices that we produce on their behalf to the Shippers has reduced since Nexus. At the same time, the invoices from the MRAs for procuring reads on their behalf has not reduced. 
- Analysis identified that the technical elements of the process are working correctly. However, there are reasons for the reduced value of the invoice (not all reasons affect all DNs)
		
Must Read process
		
DN's
		


		
01/03/2018
		


		
Closed
		


	
	

		
8
		
Closed
		
 
		
N/A
		
945
		
N/A
		


		
Incorrect functionality of a Meter Read validation routine affecting circa 3,000 meter reads 
		


		
An issue was identified in March following a number of exceptions raised from UK Link. A validation routine in UK Link was creating exceptions in certain scenarios when processing the meter read. It was found that the validation job was incorrect. On the 9th March 2018 the validation was stopped. 

Analysis has identified that 3,652 MPRNs have been affected. 
		
Read process
		
All Shippers
		


		
20/03/2018
		


		
Closed
		


	
	

		
9
		
Closed
		
 
		
N/A
		
N/A
		
XRN4671
		


		
Energy for Class 2 sites incorrect in Gemini where a read replacement is received or a consumption adjustment within GFD+5.
		


		
Energy mismatch in Gemini where a read is replaced with a read or a consumption adjustment for Class 2 sites as the energy calculated is not being sent to Gemini correctly. 
		
Read process
		
All Shippers
		


		
01/04/2018
		


		
Closed
		


	
	

		
10
		
Closed
		
843169 (Problem ID 1636)
		
P2
		
N/A
		
N/A
		


		
Issues with the Allocation run in Gemini affecting UIG
		


		
Issue encountered with the first run of Energy Allocation for Gas Day 2nd & 6th May 2018. NDM Allocation failed to calculate for this gas day, for all LDZs, This was corrected within the day.
		
Gas Allocation processes
		
All Shippers
		
The cause of this issue is due to a code fault
		
03/05/2018
		


		
Closed
		


	
	

		
11
		
Closed
		
 
		
N/A
		
969
		
N/A
		


		
Incorrect AQ/SOQ values issued in transfer of ownership files
		


		
At D-2 the TRF (transfer of ownership file) is issued to the Shipper and provides the values that will be effective on the transfer effective date, including AQ and SOQ values. Due to a code change for a defect deployed on September 27th 2017, incorrect Rolling SOQ data has been sent for all Class 3 and 4 sites transferring ownership, equating to 1.75 million Meter Points with incorrect SMP rolling SOQ values. The rolling SOQ being issued is the value as at EUC effective date (either 1st October or 1st of the month if a rolling AQ change has taken place).The transportation rates sent in the same file are correct.
		
AQ process
		
All Shippers
		


		
15/05/2018
		


		
Closed
		


	
	

		
12
		
Closed
		
848559
		
P2
		
N/A
		
N/A
		


		
Gas Nominations batch job failure affecting UIG
		


		
Unidentified Gas nominations batch job failure within Gemini at approximately 11:00 on 17th May.
Issue repeated on 21st May.

All shippers with active Unidentified Gas meters in Gemini would have had a blank value within the Gemini demand screen for the next gas day nominations.
Between 11:00 and 14:20 no forecasting figures shown 
		
Gas Nomination processes
		
All Shippers
		
TBC
		
17/05/2018
		


		
Closed
		


	
	

		
13
		
Closed
		
858471
979484 
		
N/A
		
1313
1050
		
N/A
		


		
Incorrect charges relating to Capacity
		


		
1. Duplicate adjustments in UK Link are not crediting back all charge types to the Shipper correctly. In certain scenarios, Shippers are receiving multiple refunds for Capacity Charges only
3. In a number of instances, where there has been a ratchet SOQ charge applied, they have either been incorrectly billed or have missing bill documents
		
Invoice - Capacity
		
Shippers & Networks
		
TBC
		
01/06/2018
		
April 2019
		
Closed
		
Defect 1050 deployed on 05/04/2019
Issue closed as Defect 1313 is now being monitored under the AML Taskforce. Please refer to https://www.xoserve.com/services/issue-management/amendment-invoice/ for updates
	
	

		
14
		
Closed
		
843903
		
P2
		
N/A
		
N/A
		


		
Workflow did not complete in SAP potentially resulting in incorrect data held in UKLink & Gemini
		


		
Workflow did not complete for 4,000 meter points resulting in potential incorrect data being held in UKLink & SAP affecting gas nominations, allocations, DEs & invoicing. May also impact read estimation & read processing. 
		
Gas Nomination processes
		
All Shippers
		
Fix deployed at the weekend affected the process. 
		
04/06/2018
		


		
Closed
		


	
	

		
15
		
Closed
		


		
P2
		


		


		


		
Incorrect file loaded into Gemini affecting Allocations in Gemini & UIG
		


		


Issued experienced on 5th & 6th June due to incorrect file loaded for 5th June, delay with processing the file caused issues with allocation run on the 6th June. This was corrected within the day.

Delayed publication of the UIG data for the 5th of June has meant that customers would have seen their UIG screens showing a blank value until the UIG job (as part of the Allocation Suite) had completed.
		
Gas Nomination & Allocation processes
		
All Shippers
		
This was due to a system issue by Aggregator systems experiencing a technical issue when transferring the file between systems. 
		
05/06/2018
		


		
Closed
		


	
	

		
16
		
Closed
		
856558 (Problem ID 1708)
		
P2
		
N/A
		
N/A
		


		
Incorrect demand forecast received affecting Gas Nominations & UIG
		


		

Separate issue affecting UIG for Gas Nominations on 8th June due to incorrect demand forecast received. 

All shippers with active Unidentified Gas meters in Gemini would have had a blank value within the Gemini demand screen for the next gas day nominations.
Between 11:00 and 14:20 no forecasting figures shown 
		
Gas Nomination processes
		
All Shippers
		
June issue caused by an incorrect demand forecast had been sent to Gemini .
		
08/06/2018
		


		
Closed
		


	
	

		
17
		
Closed
		
856162 (Problem ID 1713)
		
P2
		
N/A
		
N/A
		


		
Issues with the Allocation run in Gemini affecting UIG
		


		
Issue identified on the 15th June. The UIG values are very high for LDZs NW, NO, WM for Gas Day 13/06/2018 
		
Gas Allocation processes
		
All Shippers
		
This is due to low Daily Metered (DM) values being used as part of the UIG calculation within the allocation suite job.   
		
15/06/2018
		


		
Closed
		


	
	

		
19
		
Closed
		


		
N/A
		
1022
		


		


		
Read issued in the Transfer of Ownership files (TRF)
		


		
At transfer of ownership the TRF file is issued on D-2 of the Confirmation effective date confirming the effective date of the Confirmation. The MRI file is also issued which contains asset information. The ‘Last Actual Read’ recorded on UKLink is submitted in both the TRF file (S15) and the MRI file however the read in the MRI is not the correct read. Defect 1022 raised. This has been since 01/06/2017.
		
SPA - Transfer of Ownership
		
All Shippers
		


		
28/06/2018
		


		
Closed
		


	
	

		
20
		
Closed
		
865213
		
P2
		
N/A
		
N/A
		


		
Line Pack not published
		


		
A Control Room User raised a ticket as Line Pack had not been published for 00:00 hour bar. 
		
Gemini processes
		
GTs
		
Gemini Application Support began investigating and found that Gemini had received two Line Pack files at 23:00; this meant that the 23:00 hour bar loaded successfully with the first file but the second file got stuck in processing. The batch job was triggered and the 00:00 hour bar Line Pack file was published successfully. 
		
02/07/2018
		


		
Closed
		


	
	

		
21
		
Closed
		


		
P2
		
N/A
		
N/A
		


		
Data Enquiry Service is at D-2 
		


		
There has been a delay in completing the daily data load for the Data Enquiry Service (DES). As a result the system is displaying data for 2nd July 2018 but data for 3rd July 2018 is not visible.

The data for 3rd July 2018 is currently being loaded which means users may be experiencing slow performance on some of the screens
		
Data Enquiry System (DES)
		
All Shippers
		
Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019.
		
04/07/2018
		


		
Closed
		


	
	

		
22
		
Closed
		


		
P2
		
N/A
		
N/A
		


		
Technical issue with Data Search telephone service
		


		
technical issue with our Data Search telephone service, 0121 713 4901 and Contact Management Helpline, 0121 713 4903 
		
Helpline
		
All Customers
		
TBC
		
12/07/2018
		


		
Closed
		


	
	

		
23
		
Closed
		


		
N/A
		
 
		


		


		
DPS file sequencing
		


		
DPS files issued to Shippers have not followed the sequence of the last release (e.g. .PN002332.DPS’ to .PN002354.DPS’ ) 
		
SPA - files
		
All Shippers
		


		
12/07/2018
		


		
Closed
		


	
	

		
24
		
Closed
		
873558
		
P2
		
N/A
		
N/A
		


		
UIG not visible in Gemini 
		


		
Shippers and GNCC are unable to view the UIG Nominations balance for 15th and 16th Gas day & UIG allocations for 14th 
		
UIG
		
All Shippers
		
A column in one of the table has size 8 digits which is causing the UIG job failures. Database have restructured the table column size from 8 to 10 in the production environment 
		
16/07/2018
		


		
Closed
		


	
	

		
25
		
Closed
		
874837
		
P2
		
N/A
		
N/A
		


		
UIG mismatch in Gemini
		


		
Mismatch due to the UIG allocation job took time to complete for the gas day (11th ,12th,13th,14th,15th) which delayed the process. 
		
UIG
		
All Shippers
		
Job overrun due to defect 873558 
		
20/07/2018
		


		
Closed
		


	
	

		
26
		
Closed
		


		
N/A
		
 
		


		


		
DM Reports
		


		
DM reports issued to Shippers were incorrect  for 30/06/2018 to 06/07/2018 
		
Reporting
		
All Shippers
		


		
20/07/2018
		


		
Closed
		


	
	

		
27
		
Closed
		


		
N/A
		
999
		


		


		
Incorrect FYAQ values issued in transfer of ownership files (TRF). 
		


		
At D-2 the TRF (transfer of ownership file) is issued to the Shipper and provides the values that will be effective on the transfer effective date, including FYAQ and FYSOQ values. Incorrect FYSOQ data has been sent for all Class 3 and 4 sites transferring ownership, 
		
SPA - Transfer of Ownership
		
All Shippers
		


		
25/07/2018
		


		
Closed
		


	
	

		
28
		
Closed
		


		
N/A
		
 
		


		


		
UIG Rec Invoice includes kWh for SSP pre go live 
		


		
The kWh presented in the supporting information is not as expected as it includes the kWh associated to SSP reconciliation pre go-live (which has no financial value).  However this does not impact the invoice value as the smear is based on the monetary value (GRE) and we do not re-value the reconciliation using SAP and kWh.  
		
Invoice - Amendment
		
All Shippers
		


		
27/07/2018
		


		
Closed
		


	
	

		
29
		
Closed
		
N/A
		
N/A
		
N/A
		


		


		
Delay is publishing the Performance Assurance Report Register (PARR) reporting
		


		
The publication of the Performance Assurance Report Register (PARR) reporting for August 2018 will be delayed and will not be published on Monday 30 July 2018 as expected. 
		
Reporting
		
All Shippers
		


		
27/07/2018
		


		
Closed
		


	
	

		
30
		
Closed
		
884278
		
P2
		
N/A
		
N/A
		


		
Gemini-Demand Attribution not published for 10th hour bar 
		


		
P2 raised at 10:30. Shippers unable to place gas nominations. 
		
Gas Nomination processes
		
All Shippers
		
Scheduling team have identified that the demand attribution jobs were on hold  
		
29/07/2018
		


		
Closed
		


	
	

		
31
		
Closed
		
886370
		
P2
		
N/A
		
N/A
		


		
IX - Unable to connect to multiple shipper sites  
		


		
AML file delivery to 3 shippers  impacted. 
		
IX
		
All Shippers
		
IX team have updated that the connectivity issue is due to huge file transfer (400MB files);  
		
05/08/2018
		


		
Closed
		


	
	

		
32
		
Closed
		
888227
		
P2
		
N/A
		
N/A
		


		
UIG Allocations  
		


		
The Unidentified Gas (UIG) batch job failed to complete in Gemini yesterday evening (August 8th). This has affected the following: The UIG allocation values for Gas Days 3rd to 6th August were not updated and are out of date for all LDZs. The UIG allocation values for Gas Day 7th August were not calculated and appear as zero for all LDZs for all Shippers
		
UIG
		
All Shippers
		
This was due to the allocation suite overrunning on 8th August hitting the maintenance window.  
		
09/08/2018
		


		
Closed
		


	
	

		
33
		
Closed
		
888227
		
P2
		
N/A
		
N/A
		


		
UIG Allocations  
		


		
The Unidentified Gas (UIG) batch job failed to complete in Gemini yesterday evening (August 9th). This has affected the following: The UIG allocation values for Gas Days 4th to 7th August were not updated and are out of date for all LDZs. The UIG allocation values for Gas Day 8th August were not calculated and appear as zero for all LDZs for all Shippers

This is linked to 888227
		
UIG
		
All Shippers
		
This was due to the allocation suite overrunning on 9th August hitting the maintenance window.  
		
10/08/2018
		


		
Closed
		


	
	

		
34
		
Closed
		
888227
		
P2
		
N/A
		
N/A
		


		
UIG Allocations  
		


		
The Unidentified Gas (UIG) batch job failed to complete in Gemini yesterday evening (August 12th). This has affected the following: The UIG allocation values for Gas Days 4th to 7th August were not updated and are out of date for all LDZs. The UIG allocation values for Gas Day 11th August were not calculated and appear as zero for all LDZs for all Shippers

This is linked to 888227
		
UIG
		
All Shippers
		
This was due to the allocation suite overrunning on 11th August hitting the maintenance window.  
		
13/08/2018
		


		
Closed
		


	
	

		
35
		
Closed
		
971341
		
N/A
		
1107
		
N/A
		


		
MUR response not sent for Prime sites
		


		
For Prime sites (Class 2 & 3) Must Read responses are not being sent to Shippers in CMS
		
CMS
		
Shippers & Networks
		
TBC
		
8/24/2018
		
4/5/2019
		
Closed
		
Defect deployed on 05/04/2019
	
	

		
36
		
Closed
		
893054
		
P2
		
N/A
		
N/A
		


		
Amendment Invoice 
		


		
The UGR charge in the Amendment Invoice is incorrect. The total national Unidentified Gas reconciliation value is correct, but the allocation to individual Shippers is incorrect. 
		
Invoice - Amendment
		
All Shippers
		
Manual error in the brought forward Shipper throughput values for market shares of UIG reconciliation allocation from the previous month  
		
24/08/2018
		


		
Closed
		


	
	

		
37
		
Open
		
983387
		
N/A
		
 
		


		


		
Incorrect AQ and / or Formula Year AQ (FYAQ) calculated 
		
Please refer to the Open AQ Issues tab within this spreadsheet.
		
Please refer to the Open AQ Issues tab within this spreadsheet.
		
AQ - Incorrect value 
		
Shippers & Networks
		
Various
		
9/1/2018
		
Ongoing until defects are manageable
		
Defect deployment dates delayed
		
Plan to fix all outstanding defects, complete data corrections and AQ calculations in place and published on second 'Open AQ Issues' tab. 

Updates on Joint Office under Contract Management Committee (CoMC) meetings: https://www.gasgovernance.co.uk/DSC-Contract 

	
	

		
38
		
Closed
		
896574
		
P2
		
N/A
		
N/A
		


		
IX file transfer service unavailable  
		


		
Inbound and outbound file flow for Shippers impacted  
		
IX
		
All Shippers
		
TBC
		
05/09/2018
		


		
Closed
		


	
	

		
39
		
Closed
		


		
N/A
		
 
		


		


		
Estimated Transfer of Ownership Read Failure 
		


		
Estimated Read not issued in MBR file following Transfer of Ownership . The two days affected were 15/06/2018 and 30/06/2018 and applied to 78 MPRN's (12 Shippers)
		
SPA - Transfer of Ownership
		
All Shippers
		


		
07/09/2018
		


		
Closed
		


	
	

		
40
		
Closed
		


		
N/A
		
1150
		


		


		
Supplier details missing in the transfer of ownership (TRF) file 
		


		
Issue with the Transfer of Ownership process where there is no asset on UK Link, the incoming Shipper has not received and will continue not to receive previous Supplier details in the TRF file (S75 file record).
		
SPA - Transfer of Ownership
		
All Shippers
		


		
07/09/2018
		


		
Closed
		


	
	

		
41
		
Closed
		
899761
		
P2
		
N/A
		
N/A
		


		
Gemini - Demand Attribution Failed for 16:00hrs 
		


		
Demand did publish for 16:00 hrs.
Latest NDM nomination and UIG nomination will not be visible on the screen, this will impact shipper's gas buying decision 
		
Gas Nomination processes
		
All Shippers
		
Demand Attribution failed for 16:00 hrs. 
		
14/09/2018
		


		
Closed
		


	
	

		
42
		
Closed
		


		
N/A
		
1162
		


		


		
.UPI (User Pays Index) File not incrementing when new file is issued
		


		
The August User Pays Index (UPI) file was issued with the same file name as the July a file name, e.g. PN00000X5.  
		
Files
		
All Shippers
		


		
01/10/2018
		


		
Closed
		


	
	

		
43
		
Closed
		


		
N/A
		
N/A
		


		


		
Domestic M Number Helpline Incorrect Data
		


		
Since March the Domestic M Number Helpline service has not been providing accurate data in all cases 
		
Helpline
		
All Customers
		


		
01/10/2018
		


		
Closed
		


	
	

		
44
		
Closed
		


		
N/A
		
1172
		


		


		
Class 1 or 2 Sites populating Incorrect Run ID as SSP instead of LSP
		


		
Class 1 & 2 meter points are being assigned as 'SSP' instead of 'LSP' on the Amendment invoice supporting information files. 
		
Invoice - Amendment
		
All Shippers
		


		
02/10/2018
		
08/02/2019
		
Closed
		


	
	

		
45
		
Closed
		
907330
		
P2
		
N/A
		
N/A
		


		
Data Enquiry Service currently unavailable 
		


		
When trying to access the data enquiry portal, the system is timing out and not allowing users to access the portal 
		
Data Enquiry System (DES)
		
All Customers
		
Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019.
		
04/10/2018
		


		
Closed
		


	
	

		
46
		
Closed
		
911178 / 918851
		
P2
		
N/A
		
N/A
		


		
Delay in issuing some of the CFR files on 8th October 
		


		
Small number of Confirmation response files not submitted to Shippers. 14 Shippers affected. 
		
SPA - Transfer of Ownership
		
All Shippers
		
Files failed to process in AMT Marketflow. 
		
08/10/2018
		


		
Closed
		


	
	

		
47
		
Closed
		
911345
		
P2
		
N/A
		
N/A
		


		
Delay in issuing some of the CFR files on Thursday 4th October 
		


		
Incoming Shipper - For impacted Shippers, a response to their confirmation request was not sent within two Supply Point Systems business days. 

Outgoing Shipper - For impacted Shippers, withdrawal notifications and confirmation cancellation notifications were also delayed.
		
SPA - Transfer of Ownership
		
All Shippers
		
TBC
		
09/10/2018
		


		
Closed
		


	
	

		
48
		
Closed
		
911345
		
P2
		
N/A
		
N/A
		


		
Multiple confirmation responses in the Confirmation Response File (CFR) for the same confirmation request sent on 4th October. 
		


		
Incoming Shipper - For impacted shippers, multiple confirmation reference numbers were issued for the same confirmation request. This means you have received two unique confirmation responses for the same transaction (meter point), one of which will be invalid. 

Outgoing Shipper - For impacted shippers, you have received two withdrawal notifications for your own confirmation.  
		
SPA - Transfer of Ownership
		
All Shippers
		
TBC
		
09/10/2018
		


		
Closed
		


	
	

		
49
		
Closed
		


		
N/A
		
1179
		


		


		
Class change from incumbent Shipper issue
		


		
Where a class change request is received from an incumbent shipper, there is currently no rejection which is causing AQ mismatch between UKLink and Gemini.

Confirmed this is not an issue.

		
SPA - Class change
		
All Shippers
		


		
10/10/2018
		


		
Closed
		


	
	

		
50
		
Closed
		


		
N/A
		
1188
		


		


		
Incorrect rejection for Interconnector request (RCI file)
		


		
Request to register on the Interconnector is rejecting incorrectly stating Contact Job Details not provided (CTT00012) even though the Contact Job Title has been provided in the file
		
SPA - Supply Point Updates
		
All Shippers
		


		
12/10/2018
		


		
Closed
		


	
	

		
51
		
Closed
		


		
N/A
		
1191
		


		


		
Connection max AQ & SOQ incorrect in the Q44 record for iGT sites 
		


		
Connection max AQ and SOQ values are incorrect in Q44 segment for the MPRNs that belong to CSEPs which are part of a nested configuration. This should have values for the parent CSEP, currently child CSEP AQ and SOQ values provided in this field.

		
AQ process
		
All Shippers
		


		
12/10/2018
		
11/01/2019
		
Closed
		


	
	

		
52
		
Closed
		


		
N/A
		
1190
		


		


		
Formual Year SOQ not provided in TRF File
		


		
Formula year SOQ value not provided for the TRF flows where confirmation effective date is 02nd Oct 2018.
		
AQ process
		
Shippers & Networks
		


		
12/10/2018
		
29/01/2019
		
Closed
		


	
	

		
53
		
Closed
		
907423
		
P2
		
N/A
		
N/A
		


		
43 files not processed in Marketflow, files stuck in Marketflow due to database issue, affected 15 Shippers. 
		


		
43 files submitted on the 4th October were not processed. Files affected: Supply Point update files, RGMA files and Class 3 & 4 read files. 
		
SPA - multiple processes
		
All Shippers
		
TBC
		
22/10/2018
		


		
Closed
		


	
	

		
54
		
Closed
		


		
N/A
		
 
		
 
		


		
UIG share & charges incorrect for since October 2017.
		


		
The UIG share & charges since October 2017 have been issued on the Amendment invoice incorrectly. This is due to the wrong UIG weighting factors being applied to two End User Category (EUC) bands. 
		
UIG Adjustments
		
All Shippers
		
Incorrect weighting factors were uploaded into UKLink tables and seperately the UIG share was triggered before activities carried out by IS Ops were completed.;  
		
26/10/2018
		


		
Closed
		
Original plan to deliver adjustments by 22/12/18.  Final adjustments issued 02/04/19
	
	

		
55
		
Closed
		
923446
		
P2
		
N/A
		
N/A
		


		
Two Confirmation files not processed. 
		


		
Manual processing required to following a connectivity issue on 28th October. Two files were missed. 
		
SPA - Transfer of Ownership
		
All Shippers
		
Manual error, 2 files were overlooked and not processed until Shipper raised a query. 
		
28/10/2018
		


		
Closed
		


	
	

		
56
		
Closed
		
922156
		
P2
		
N/A
		
N/A
		


		
Gemini - Hourly capacity data is not published for IP auction  
		


		
Gemini hourly capacity data not published for IP auctions from 23:00 on 28/10/28 to 04:00. on 29/10/18.
		
Gemini processes
		
GTs
		
An outage from 16:00 till 23:00 affected Gemini as files were not received. Team have restarted the auctions and Gemini received the  hourly auction data for 04 hour bar at 23:32.
		
28/10/2018
		


		
Closed
		


	
	

		
57
		
Closed
		
922161
		
P2
		
N/A
		
N/A
		


		
EU nominations placed by the shippers will not be confirmed until we receive files from BBL and IUK TSOs 
		


		
EU nominations placed by the shippers were confirmed late as we received the acknowledgement files late in Gemini.  
		
Gemini processes
		
GTs
		
Gemini support team identified the files are stuck in system, service restarted to process the files. 
		
29/10/2018
		


		
Closed
		


	
	

		
58
		
Closed
		
927554
		
N/A
		
1280
1236
		
N/A
		


		
Issues relating to processing of daily metered reads and read notification files
		
For class 1 meter points, daily read information incorrect in the notification read files and Site Visit information recorded against the wrong meter for Twinstream sites.

 Low volume of MPRNs affected
		
1280: Where a better estimate read is calculated and sent to Shippers/ DMSP, the read fields within the Daily Data Logger Readings (MDR) and DMSP Readings (DDR) file are being populated with incorrect data
1236: Where a DMSP inputs a site visit read for a Twin Stream Site via Portal, the read is being recorded against the incorrect Meter Serial Number than the one being selected
		
Read process
		
Shippers & Networks
		
TBC
		
15/11/2018
		
Jun-2019
		
Closed
		
Defect 1280:  Deployed on 10th May 2019
 Defect 1236: Deployed on 21st June 2019. 
	
	

		
59
		
Closed
		
966533
		
N/A
		
1164
1205
1193
1319
1325
1398
1421
1485
		
N/A
		


		
Incorrect Formula Year SOQ & AQ values issued in notification or response files
		
Incorrect AQ/FYAQ values being issued in multiple notification files to Shippers and Networks. 

Defect 1325 affects a very small number of supply Points. 
		
1164: Issue where AQ & NDM SOQ are not getting updated correctly in UKLink and not populated in AQ notification (NRL) file where there is a Class change & AQ correction effective for the same day. 
Linked to defect 1205
1205:Formula year SOQ value is incorrect in the transfer (TRF) file when a Class change received through CNF and AQ correction goes live for the same effective date. 
Same issue has also occurred when Class change and EUC change happening on the same date. SOQ values in TRF / CFR and NMR  files sent incorrectly
1193: Where a class change from 2 to 4 and effective date for 1st October 2018, EUC values are not being processed correctly where the NDM SOQ is derived
Same issue has also occurred when Class change and EUC change happening on the same date. SOQ values in TRF / CFR and NMR  files sent incorrectly
1319: Incorrect Formula Year AQ Value has been incorrectly populated in the .NRL file where an AQ correction has taken place between April 2018 - February 2019. 
1325: The Monthly NRL file (AQ Notification file) is not being sent to shippers on the the NTS Interconnector notifying them of the change in AQ value as part of the Monthly AQ Roll process.
1398: Incorrect EUC details are being sent out in the NRL file for the WC correction when it is processed on M-2 where M is the effective date.
1421: When a shipper submits AQ Correction file (AQI) the read is incorrectly accepting as the system is not validating the read and read date to ensure it matches
1485: When processing an AQ Correction file (.AQI), the system is calculating energy using Calorific Value (CV) of D-2 when it should use D-1
		
AQ - Notification
		
Shippers & Networks
		
TBC
		
11/15/2018
		
Jan-2020
		
Closed
		

Defect 1164: Deployed 29th March 2019
Defect 1205: Deployed 29th March 2019
Defect 1193: Deployed 29th March 2019
Defect 1319: Deployed 19th April 2019
Defect 1325: Deployed 28th June 2019
Defect 1398: Deployed 11th November 2019
Defect 1421: Deployed 6th September 2019
Defect 1485: Deployed 4th January 2020
	
	

		
60
		
Closed
		


		
N/A
		


		


		


		
Incorrect Read Reason (READ_REASON) sent on the read file (MBR) notifying of an estimated opening read
		


		
Following registration of a meter point by a Shipper, if an opening meter reading is not submitted by D+10 of the transfer effective date an estimated read is calculated and issued to both incoming & outgoing Shipper. The read issued to the Incoming Shipper gave 'Read Reason' as 'CYCL', it should be 'OPNT'. This has affected 51, 000 meter points between 24/11/18 and 27/11/18. 
		
Read process
		
All Shippers
		


		
28/11/2018
		


		
Closed
		


	
	

		
61
		
Closed
		
963811
		
N/A
		
1241
		
N/A
		


		
Incorrect values in Gemini
		
Incorrect SOQ value in Gemini for Class 1 meter points. No impact to energy or UIG. 

No workaround in place, however data correction to be completed once the defect is deployed.
		
The Current Year Maximum Supply Offtake Quantity (CYM SOQ) value is not being revised in Gemini when there is a change in the energy value
		
Gemini processes
		
Shippers & Networks
		
TBC
		
11/28/2018
		
Jun-2019
		
Closed
		
Defect 1241: Deployed on 28th June 2019
	
	

		
62
		
Closed
		
936152
		
P2
		
N/A
		
N/A
		


		
Gemini - UIG Nomination Job Overrunning 
		


		
There has been a delay in publishing the UIG nomination values in Gemini. 

The 10:00am UIG nomination process is still running. This has caused the 11:00am UIG nominations to not start. 
 
		
UIG
		
All Shippers
		
The monthly Annual Quantity (AQ) update has overrun due to a large number of records. This has caused a delay to the 10:00am UIG nomination job in Gemini.

The AQ job completed at 11:45am but the UIG nomination process is still in progress.

The next UIG job was due to start at 11:00am, however this will be put on hold and the nomination job at 1:00pm will be run instead.
		
30/11/2018
		


		
Closed
		


	
	

		
63
		
Closed
		
937188
		
P2
		
N/A
		
N/A
		


		
Users unable to query Data Enquiry Servoce (DES) 
		


		
Users unable to access DES due to high system utilisation. DES not available from 04:17 to 05:37  
		
Data Enquiry System (DES)
		
All Customers
		
Formula year AQ/SOQ extraction and the monthly NLSP load were running in parallel and causing the high utilisation. Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019. 
		
03/12/2018
		


		
Closed
		


	
	

		
64
		
Closed
		
938847
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with NG Metering 
		


		
Daily reads file (.DLC) not received from DMSP at usual time due to a connectivity issue with the IX.  
		
IX
		
Shippers & Networks
		
router fault as the circuit tests showed no issues 
		
08/12/2018
		


		
Closed
		


	
	

		
65
		
Closed
		


		
N/A
		
1247
		


		


		
Winter Consumption process not using all reads types during calculation
		


		
Winter Consumption calculation process in not using all read types to calculate the WC. 
		
Read process
		
Shippers & Networks
		


		
20/12/2018
		
22/03/2019
		
Closed
		


	
	

		
66
		
Closed
		
945238
		
P2
		
N/A
		
N/A
		


		
Daily Read file (.MDR) not issued before 14:00 hrs.  
		


		
Delay in submitting the daily reads file to Shippers (.MDR) file.   
		
Read process
		
All Shippers
		
UK Link – AMT Market flow slowness / performance issue  
		
31/12/2018
		


		
Closed
		


	
	

		
67
		
Closed
		


		
N/A
		
1256 Problem ID 1996
		


		


		
Opening Reads Sent via the U03 file in Error to Previous Shipper
		


		
For Class 3 meter points, where a cyclic read is received from the Outgoing Shipper (via the .UBR file), for a read date, which is the same as the registration effective date (transfer date), the system is accepting the read, it should reject the meter reading. 

The read is being recorded as the Opening read (U03) and is being sent to the Shipper who submitted the read, and to the current Shipper as a Final read (U04) indicator
		
Read process
		
All Shippers
		


		
04/01/2019
		
08/03/2019
		
Closed
		


	
	

		
68
		
Closed
		
947237
		
P2
		
N/A
		
N/A
		


		
Issue with sending the NTS Exit Capacity Invoice 
		


		
The NTS Exit Capacity Invoice (.NXC) for the December 2018 billing period failed to send due to the CHARGE_ITEM_REF_NUMBER being 10 digits. Previously it has always been a maximum of 9 digits but due to incrementation it is now 10 digits. This is a mandatory field in the file formats with a numeric field length of 9 digits.
		
Invoice - NTS Capacity
		
All Shippers
		
This is due to the incrementation of the charge item reference number from 9 digits to 10 digits 
		
07/01/2019
		


		
Closed
		


	
	

		
69
		
Closed
		


		
N/A
		
1265
		


		


		
NDMSOQ Incorrect due to Winter Consumption process
		


		
The Winter Consumption calculation process does not create records in the correct table in UK Link, this results in the NDMSOQ value being incorrect for the annual FYAQ calculation. 
		
AQ process
		
Shippers & Networks
		


		
16/01/2019
		
08/03/2019
		
Closed
		


	
	

		
70
		
Closed
		


		
N/A
		
1264
		


		


		
Incorrect data provided in AQ notification file T98 file record
		


		
The monthly AQ Roll process is populating the incorrect EUC number, EUC description and confirmation reference number in the T98 file record of the NRL file (AQ notification)
		
AQ process
		
Shippers & Networks
		


		
16/01/2019
		
22/03/2019
		
Closed
		


	
	

		
71
		
Closed
		
888087
		
N/A
		
1274
		
N/A
		


		
Class Change requests incorrectly rejecting following Transfer of Ownership
		
Shipper unable to change Class until after 2 months of taking ownership of the meter point.

Does not prevent transfer of ownership.

Workaround in place to stop files rejecting however minimal impact - low volumes of Shippers affected 
		
Shipper Class change requests are incorrectly rejecting where a change of ownership has taken place within 2 months of the previous Class change request 
		
SPA - Class change
		
All Shippers
		
TBC
		
22/01/2019
		
May-2019
		
Closed
		
Defect 1274: Deployed 17th May 2019
	
	

		
72
		
Closed
		
950723
		
P2
		
N/A
		
N/A
		


		
Incorrect energy and incorrect estimated daily reads for Class 1 and 2 meter points  
		


		
Incorrect energy for Class 1 and 2 meter points for Gas Flow Day (GFD) 18th January 2019 and incorrect estimated daily reads for Class 1 and 2 meter points issued in the MDR file for GFD 20th, 21st, 22nd and 23rd January 2019 
		
Read process
		
All Shippers
		
On 18th January 2019 a P2 incident (950723) was raised due to a batch failure which resulted in a delay issuing the daily reads (MDR file) to Shippers. The files were issued at 7:00pm on 19th January when they should have been issued by 2:30pm. Unfortunately, this had a knock on affect to subsequent days;
1. The actual Calorific Value (CV) was not loaded into UK Link on 19th January for GFD 18th January. Therefore the energy calculated used an estimated CV value. 
2. Estimated reads, where an actual read was not received/accepted, was not calculated for GFD 19th January and was not loaded into Gemini nor issued to Shippers (via the MDR file).
3. Any estimated reads required for GFDs 20th, 21st, 22nd and 23rd January did not calculate correctly. The energy was correct but the meter reading issued in the file (MDR) was incorrect.

		
23/01/2019
		


		
Closed
		


	
	

		
74
		
Closed
		
954337
		
P2
		
N/A
		
N/A
		


		
Delay in publishing UIG Gas Nominations for 1st Feb. 
		


		
Delay in publishing the UIG Gas Nominations for 1st Feb 
		
UIG
		
All Shippers
		
Gemini: UIG Nomination Day Ahead Batch Job Failed Due to Incorrect Meter ID Entries in file to gemini
		
31/01/2019
		


		
Closed
		


	
	

		
75
		
Closed
		
955031
		
P2
		
N/A
		
N/A
		


		
EU Nominations are not getting confirmed  
		


		
EU Nominations in Gemini are not getting confirmed affecting 6 Shipper. 
		
Gemini processes
		
GTs
		
Service restarted, files started to flow successfully  without any issues.
		
02/02/2019
		


		
Closed
		


	
	

		
76
		
Closed
		
 
		
N/A
		
1293
		
N/A
		


		
Incorrect data provided within the Asset Invoice supporting file (MIF)
		


		
Issue with the Asset Invoice MIF File (Supporting information file generated as part of the MAS invoice). The K50 file record (Meter Portfolil Detail) is being populated with the incorrect data. 
		
Invoice - Ancillary
		
All Shippers 
		
TBC
		
05/02/2019
		
05/04/2019
		
Closed
		
Deployed on 05/04/2019
	
	

		
77
		
Closed
		
959618
		
P2
		
N/A
		
N/A
		


		
Demand attribution is not published for 17th and 18th gas day 
		


		
Gas nominations & allocations not published for the 17th & 18th February in Gemini.  
		
Gas Nomination & Allocation processes
		
All Shippers
		
TBC
		
18/02/2019
		


		
Closed
		


	
	

		
78
		
Closed
		
962629
		
P2
		
N/A
		
N/A
		


		
CMS Unavailable 
		


		
CMS - Application unavailable between 12:04 to 13:10. 
		
CMS
		
All Customers
		
File Exchange service went down. P3 ticket has been raised for monitoring  
		
25/02/2019
		


		
Closed
		


	
	

		
79
		
Closed
		
963956
		
P2
		
N/A
		
N/A
		


		
Gemini application will be unavailable  
		


		
Unavailability of Gemini from 03:01 to 09:13 meaning Users will not be able to perform any of the business process untill the services are restored. 
		
Gemini processes
		
Shippers & Networks
		
P3 ticket (964561) has been raised for monitoring 
		
27/02/2019
		
27/02/2019
		
Closed
		


	
	

		
80
		
Closed
		
972030
		
P2
		
N/A
		
N/A
		


		
No access to Data Enquiry System (DES)
		


		
Users unable to access DES, identified on 18/03/19 at 11:10
		
Data Enquiry System (DES)
		
All Customers
		
Application support team identified a high number of sessions were open which resulted in the outage of the application from 11:10 to 11:35. Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019.
		
3/18/2019
		
3/18/2019
		
Closed
		


	
	

		
82
		
Closed
		
974369
		
P2
		
N/A
		
N/A
		


		
Intermittent login issue with Xoserve Portal
		


		
Users experiencing intermittent issues with loggin into the Portal, error message displayed. Identified at 08:46 on 22/03/2019
		
Portal
		
All Customers
		
The User Identification (IDAM) issue, system was re-started which resolved the issue at 10:16.
		
3/22/2019
		
3/22/2019
		
Closed
		


	
	

		
83
		
Closed
		
974852
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		


		
Users unable to access Gemini impacting Gas Nominations, UIG Nominations, demand estimation & Capacity Auctions.
		
Gemini processes
		
All Customers
		
Database error. Raised at 23:25, service resumed at 02:35 and all activities completed before maintenance window. 
		
3/25/2019
		
3/25/2019
		
Closed
		


	
	

		
84
		
Closed
		
976190
		
P2
		
N/A
		
N/A
		


		
Intermittent access issue with Xoserve Portal
		


		
Identified on 25/03/2019 at 15:36 that users were getting intermittent issues with accessing the Xoserve Portal.
		
Portal
		
All Customers
		
Intermittent network issues between 15:00 and 16:00. Serviced resumed at 16:00. Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019.
		
3/25/2019
		
3/25/2019
		
Closed
		


	
	

		
85
		
Closed
		
976637
		
P2
		
N/A
		
N/A
		


		
Users unable to view data in online Gemini screen
		


		
Users were able to access Gemini but unable to view data in the online screens. Raised at 23:55. 
		
Gemini processes
		
All Customers
		
Database error resulting in batch job failure. Archived log full, old files deleted. Service resumed on 27th March at 00:30.
		
3/26/2019
		
3/27/2019
		
Closed
		


	
	

		
86
		
Closed
		
977126
986730
		
P2
		
1336
		
N/A
		


		
File Record incorrectly being sent for lapsed Nomination Offers
		
Data being issued to Shippers when they are not entitled to it.  

Workaround in place to stop S91 records being sent for lapsed nomination offers in .NRL file each month.
Data correction being carried out on monthly basis.
		
Revised Supply Point Data Notifications (S91 File Record), within the Annual Quantity (AQ) Notification file (NRL), have been incorrectly issued to the Nominating Shipper after the Nomination Offer has lapsed; 748 meter points have been affected
		
SPA - Transfer of Ownership
		
All Shippers
		
System functionality - defect raised.

As part of our resolution to fix the issue, and in preparation to generate the correct .NRL file in April, a system data fix to update the status of the Offers was carried out.  Three MPRNs were not included in the data fix, which resulted data being issued in the NRL file on Thursday 18th April.  
		
3/27/2019
		
May-2019
		
Closed
		

Additional ticket number added due to incident re-occuring on 18/04/2019

Defect 1336: Data fix deployed 12th April
Enduring fix deployed 10th May 2019. 
Business validation on the AQ notification file completed 23rd May and .NRL files successfully delivered on 24/05/2019
	
	

		
87
		
Closed
		
977205
		
N/A
		
N/A
		
N/A
		


		
Delay in sending the daily read files (MDR) to Shippers
		


		
On the 28th March 2019 the daily read files (for Gas Flow Day of the 27th march 2019 ) for Class 1 sites were issued late to Shippers 
		
Read process
		
All Shippers
		
To be confirmed
		
3/28/2019
		
4/1/2019
		
Closed
		


	
	

		
88
		
Closed
		
977462
		
P2
		
N/A
		
N/A
		


		
IX – Connectivity  issue with multiple shipper sites.
		


		
On 29/03/2019  at 16:07 it was identified there was an IX connectivity issue for multiple customers. 
		
All processes
		
All Customers
		
Outage in network affecting multiple customers. Service was restored at 17:30 
		
3/29/2019
		
3/29/2019
		
Closed
		


	
	

		
89
		
Closed
		
977961
		
P2
		
N/A
		
N/A
		


		
UIG Gas Nomination not published. 
		


		
UIG for the 1st April not published. Identified on 31/03/19 at 11:16
		
UIG
		
All Shippers
		
Data issue causing UIG batch job to fail. Fix applied and UIG published at 14:32. 
		
3/31/2019
		
3/31/2019
		
Closed
		


	
	

		
90
		
Closed
		
978104
		
P2
		
N/A
		
N/A
		


		
CMS services unavailable
		


		
All users unable to perform any operations in CMS, identified at 08:24.
		
CMS
		
All Shippers
		
Identified at 08:24. SQL exceptions raised, Vendor involved and logs shared. Service restored at 11:15.
		
4/1/2019
		
4/1/2019
		
Closed
		


	
	

		
91
		
Closed
		
978225
		
P2
		
N/A
		
N/A
		


		
IX – Connectivity issue for multiple customers.
		


		
On 01/04/2019  at 12:12 it was identified there was an IX connectivity issue for multiple customers. This also affected the ability to connect to Gemini via Citrix .
This was due to capacity issue with Xoserve's Third Party Suppliers automation software
		
All processes
		
All Customers
		
Outage in network affecting multiple customers. Service was restored on 01/04/2019 at 12:45. 
		
4/1/2019
		
4/1/2019
		
Closed
		


	
	

		
92
		
Closed
		
978730
		
P2
		
N/A
		
N/A
		


		
Portal Services performance issues
		


		
Some Users experiencing performance issues with Portal & CMS

		
Portal
		
All customers
		
Configuration change implemented on 28th March 2019. Portal team reverted the configuration change on 12/04/19 which was originally implemented on 28th March to resolve the issue. (RFC 8086 : Modify Portal Maintenance configuration to support application specific maintenance page)
		
4/2/2019
		
4/2/2019
		
Closed
		
P2 closed as fix complete on 12/04/2019
	
	

		
93
		
Closed
		
978889
		
P2
		
N/A
		
N/A
		


		
Transfer of ownership file (.TRF & .MRI) held in AMT- Market flow 
		


		
On 02/04/2019 at 20:43 it was identified there was an issue in Market flow where files were not being processed. Alerts triggered, files prioritised & TRF/MRI files processed within D-1 of the registration effective date. Files generated on 2nd April, delivered to customers on the 3rd April. Effective date in these files was 4th April.
		
SPA - Transfer of Ownership
		
All Shippers
		
Files stuck in Market Flow due to increase of files received on 02/04/19
		
4/2/2019
		
4/3/2019
		
Closed
		


	
	

		
94
		
Closed
		
979373
		
P2
		
N/A
		
N/A
		


		
UIG Nomination not published in time within Gemini
		


		
UIG Nominations were delayed in being published for GFD 5th April 2019
		
UIG
		
All Shippers
		
Meter Details file (.MDS) was received on 03/04/19 and had two records associated to the same UG meter. Datafix applied to update the UG meter for which the data was not present.

		
4/4/2019
		
4/4/2019
		
Closed
		


	
	

		
95
		
Closed
		
979500
		
P2
		
N/A
		
N/A
		


		
Delay in issuing the Invoicing (.INV) files
		


		
Delays in issuing the invoicing (.INV) files from AMT Market flow due to a backlog of files. Alerts triggered and files prioritised. All files were issued before 17:00 hrs.
		
Invoicing - General
		
All Shippers
		
Backlog of files were holding up the processing of the Invoicing files and therefore caused delay 
		
4/4/2019
		
4/4/2019
		
Closed
		


	
	

		
96
		
Closed
		
981847
		
P2
		
N/A
		
N/A
		


		
IX – Connectivity issue for multiple customers.
		


		
On 08/04/2019  at 17:06 it was identified there was an IX connectivity issue for multiple customers affecting the flow of files. Service resumed at 18:51
		
All processes
		
All Customers
		
Third party technical fault
		
4/8/2019
		
4/8/2019
		
Closed
		


	
	

		
97
		
Closed
		
980799
		
P2
		
N/A
		
N/A
		


		
EU Gas Nominations Job Failures in Gemini
		


		
Shippers are unable to confirm EU nominations in Gemini due to a delays in receiving auction details. Impact time 01:38am and resolved at 14:07pm
		
Gemini processes
		
All Shippers
		
Batch Job Failure
		
4/8/2019
		
4/8/2019
		
Closed
		


	
	

		
98
		
Closed
		
986190
		
P2
		
N/A
		
N/A
		


		
Data Enquiry Service currently unavailable
		
Customers unable to access the Data Enquiry system
		
Xoserve system failed which resulted in customers not being able to access the Data Enquiry Service from 05:11am until 15:41pm on 22nd April
		
Portal
		
All Customers
		
Xoserve system failing due to third party technical error. Service review or Portal, Offline services & Data Enquiry Service being carried out July 2019.
		
4/22/2019
		
4/22/2019
		
Closed
		


	
	

		
99
		
Closed
		
983611
979757
		
N/A
		
1350
1363
		
N/A
		


		
Issues relating to processing of Supply Point Updates
		
Shippers are unable to update Supply Meter Point details
		
1350: When a Shipper is trying to amend Supply Point Meter Details via the .SPC file, the files are being rejected for NTS Direct Connect Telemetered Sites due to postcode validation not existing in the system. Low volume of MPRNs affected
1363: Requests to update the Shipper Nomination Reference Number via the RFA file are being rejected incorrectly.
		
SPA - Update of Supply Meter Point Details
		
All Shippers
		
System functionality not having the required validation in place
		
4/12/2019
		
May-2019
		
Closed
		
Defect 1350: Deployed 17th May 2019
Defect 1363: Deployed 10th May 2019
	
	

		
100
		
Closed
		
989460
		
P2
		
N/A
		
N/A
		


		
CMS Performance issues 
		
Users experiencing slowness with the service
		
11:43 CMS performance issues, with users advising that the service was running slow.
12:46 System performance resolved and running back to full capacity 
		
CMS
		
All Customers
		
CMS applications team found a long running query in the system which they then stopped and performance was improved. A P3 ticket has been raised for ongoing monitoring. 
		
30/04/2019
		
30/04/2019
		
Closed
		


	
	

		
101
		
Closed
		
989433
		
P2
		
N/A
		
N/A
		


		
Data Enquiry (DES) Performance issues 
		
Users experiencing slowness with the service
		
10:16 Some users experiencing performance issues with Data Enquiry Service
14:50 System performance resolved and running back to full capacity 
		
Data Enquiry System (DES)
		
All Customers
		
Batch job overrun. Prevention – Improved identification of high CPU spikes.
Service review of Portal, Offline services & Data Enquiry Service being carried out July 2019.
		
30/04/2019
		
30/04/2019
		
Closed
		


	
	

		
102
		
Closed
		
987198
		
P2
		
N/A
		
N/A
		


		
Monthly AQ not updated for 9,000 MPRNs
		
Shippers had not received notification of an  AQ revision in the montly .NRL file 

.NRL files are being manually for affected MPRNs sent to Shippers via the IX / Email. 
		
During the AQ calculation process for April 2019, a system exception was created for approximately 9,000 Supply Meter Points. The exceptions were not processed in time, before the notification file (.NRL) was sent, which resulted in a revised AQ not being calculated with an effective date of 1st May 2019 and notified to Shippers. 
NDM Nominations and UIG Gas Allocations were incorrect for Gas Flow Day 1st May 2019 however the gas allocations were corrected for the 1st May 2019 before GFD+5.  
All relevant tables updated prior to the generation of AQ reports issued to Networks. 
		
AQ process
		
All Shippers
		
Exceptions were not resolved and processed before the AQ process and notification files were isued.
		
4/24/2019
		
May-2019
		
Closed
		
Incident closed on 31st May. Communication sent to Shippers, requesting preferred method to receive the AQ Notification files (NRL). 
Customer Advocates have contacted outstanding Shippers directly to advise on this.
	
	

		
103
		
Closed
		
990784
		
P2
		
N/A
		
N/A
		


		
CMS Performance issues 
		
Users not able to access the system
		
07:31 CMS performance issues, with users advising that the service is running slow and that they are being timed out of the system. 
10:48 Service resumed and running back to full capacity
		
CMS
		
All Customers
		
Database start-up was delayed as there was an implementation change carried out, start-up job got failed, which resulted in unnecessary timeouts with the system.
		
5/3/2019
		
5/3/2019
		
Closed
		


	
	

		
104
		
Closed
		
991005
		
P2
		
N/A
		
N/A
		


		
Delay in publishing UIG Gas Nominations for 4th May 
		
Shippers unable to determine how much gas they need to buy via online screen for next gas day due to information not being published on time in Gemini
		
Delay in publishing the UIG Gas Nominations for Gas Flow Day 4th May 2019
		
Gemini processes
		
All Shippers
		
Manual Error. Prevention – Review appropriate checks are completed.
		
5/3/2019
		
5/3/2019
		
Closed
		


	
	

		
105
		
Closed
		
995034
		
P2
		
N/A
		
N/A
		


		
Data Enquiry Service unavailable for customers
		
Users unable to access Data Enquiry Service
		
Customers were able to access the Xoserve Portal, however there were multiple customers unable to access the Data Enquiry Service from 11:15am. 
Service was resumed at 11:30am
		
Data Enquiry System (DES)
		
All Customers
		
Concurrent maximum threshold for users was exceeded
Prevention – Increase the threshold for users planned change target 22/06/19
Service review or Portal, Offline services & Data Enquiry Service being carried out July 2019.
		
5/16/2019
		
5/16/2019
		
Closed
		


	
	

		
106
		
Closed
		
989429
		
N/A
		
N/A
		
N/A
		


		
Delay in issuing the Notification of Meter Point Status Change files (.NMS).
		
Shippers were not notified of changes to meter point statuses, or effective change dates in UK Link for Supply Meter Points in their ownership.  For example, meter point status changes from Dead (DE) to Live (LI) and the date that this was effective from. 
		
From Monday 8th April 2019 to Friday 3rd May 2019, Shippers had not received the Notification of Meter Point Status Change files (.NMS)
		
SPA - Supply Point Updates
		
Shippers
		
The files were not sent as a result of a system restart error in SAP ISU. One .NMS file failed which then prevented any subsequent files to be processed.  
		
5/8/2019
		
5/16/2019
		
Closed
		


	
	

		
107
		
Closed
		


		
N/A
		
N/A
		
N/A
		


		
Issue identified with the current Find My Supplier web service
		
The web service was unavailable for customers from 3:15pm on 20/05/2019 until 12:00pm on 22/05/2019. Users attempting to use the web service were redirected to the Xoserve Domestic Consumer M Number Helpline
		
Internal validation code testing identified an issue in the current Find My Supplier web service that could potentially be abused by a malicious user. 

In order to resolve this issue, the service was suspended with immediate effect. During the service outage a message was displayed on the website informing users of the ongoing maintenance.
		
Find My Supplier
		
All Customers
		
Development and build of the system lacked security to prevent malicious users from hacking the system.
		
5/20/2019
		
5/22/2019
		
Closed
		


	
	

		
108
		
Closed
		
981489
		
N/A
		
1378
		
N/A
		


		
Conflicting data provided in Network reports
		
Incorrect Weather Variance Correction (CWV) values provided in reports which are sent to Networks on a weekly basis 

Xoserve manual workaround in place to retrieve correct values which mitigates impact to customers
		
It has been identified that there is a mismatch of Weather Variance Correction values (CWV) within two reports which are sent to Networks on a weekly basis (Network Throughput Data Weekly Report and Weather and CV Report)

		
Revenue Assurance Reporting
		
Networks
		
TBC
		
4/8/2019
		
Jun-2019
		
Closed
		
Defect 1378: Deployed 7th June 2019
	
	

		
109
		
Closed
		
998106
		
P2
		
N/A
		
N/A
		


		
Xoserve Portal Service unavailable for customers
		
Users unable to access Xoserve Portal
		
All users unable to perform any operations in Xoserve Portal from 8:06am on 23/05/2019.
Service was restored at 08:36am on 23/05/2019 
		
Portal
		
All Customers
		
Portal services failed to load, following maintenance checks carried out. Service review or Portal, Offline services & Data Enquiry Service being carried out July 2019.
		
5/23/2019
		
5/23/2019
		
Closed
		


	
	

		
110
		
Closed
		
998274
		
P2
		
N/A
		
N/A
		


		
CMS Performance issues 
		
Users experiencing slowness with the service
		
09:10 CMS performance issues, with users advising that the service is running slow and that they are unable to navigate round the system
10:20 Service resumed and running back to full capacity
		
CMS
		
All Customers
		
Increased traffic in the system caused the application to run slower than normal
		
5/23/2019
		
5/23/2019
		
Closed
		


	
	

		
111
		
Closed
		
999101
		
P2
		
N/A
		
N/A
		


		
Data Enquiry (DES) Performance issues
		
Users experiencing slowness with the service
		
10:21 Due to an internal batch job overunning, there was a subsequent effect on DES performance for customers, experiencing intermittent speed and access issues with Xoserve Portal
1:31pm Service was restored and running back to full capacity

		
Portal
		
All Customers
		
Delay of files from CMS which has had a subsequent effect to the daily job in Portal and resulted in high volume of traffic in the system. Service review or Portal, Offline services & Data Enquiry Service being carried out July 2019.

		
5/24/2019
		
5/24/2019
		
Closed
		


	
	

		
112
		
Closed
		
999785
		
P2
		
N/A
		
N/A
		


		
Issues generating AAQ and MDS Files
		
Gas Nominations and allocations in Gemini would have been incorrect if the files were not manually corrected
		
Due to deployment of another defect, Aggregated Annual Quantity (AAQ) and Meter Details (MDS) files for Gas Flow Days 24th, 25th and 26th were not generated. There was a workaround in place for the files to be loaded into Gemini by the end of the day, and therefore there was no impact to Demand Attribution or UIG.
		
Gemini processes
		
All Shippers and Networks
		
Due to the implementation of defect 1310
		
5/26/2019
		
5/26/2019
		
Closed
		


	
	

		
113
		
Closed
		
1001036
		
P2
		
N/A
		
N/A
		


		
Slowness with Xoserve Service Portal
		
Users experiencing slowness with the service
		
15:10 Low number of customers raised tickets, advising that they were experiencing slowness within Portal 
15:25 Service was restored and running back to full capacity 
		
Portal
		
All Customers
		
Database error referred to Third Party for analysis and recommended to apply a patch.  Prevention – Testing of patch in progress target date 02/07/19. Service review or Portal, Offline services & Data Enquiry Service being carried out July 2019.
		
5/30/2019
		
5/30/2019
		
Closed
		


	
	

		
114
		
Closed
		
1004222
		
P2
		
N/A
		
N/A
		


		
AMT Market Flow stopped polling inbound DLC files
		
Estimated reads may not be accurate
		
AMT Market Flow stopped polling inbound Daily Read Equipment Read (.DLC) files. The application was restarted and files were successfully processed in time, therefore no impact to systems
		
Read process
		
Shippers and Networks
		
Root cause analysis ongoing
		
6/5/2019
		
6/5/2019
		
Closed
		


	
	

		
115
		
Closed
		
1004230
		
P2
		
N/A
		
N/A
		


		
Xoserve Portal Service unavailable for multiple customers
		
Low number of customers unable to access the Xoserve Portal 
		
08:35am Low number of customers were unable to access the Xoserve Portal  
08:52am Service was resumed

		
Portal
		
All Customers
		
Due to system downtime being short no logs were taken to be able to investigate the route cause.
		
6/5/2019
		
6/5/2019
		
Closed
		


	
	

		
116
		
Closed
		
995137
		
N/A
		
1394
		
N/A
		


		
Issues with manual Replacement Reads
		
This may impact reconciliation charges, and issuing of Billable Meter Readings (.MBR)

No workaround in place, however all meter points affected will require a data correction once the fix has been deployed.
		
Where an Xoserve user manually replaces an opening read on behalf of a Shipper, an internal table within the system is not updating correctly, which is causing downstream impacts
		
Read process
		
All Shippers
		
Root cause analysis ongoing
		
5/16/2019
		
Sep-2019
		
Closed
		
Defect 1394: Deployed on 13th September 2019 
	
	

		
117
		
Closed
		
1006278
		
P2
		
N/A
		
N/A
		


		
UIG Allocations not published in Gemini
		
 UIG allocations are not visible in Gemini for GFD 8th June 2019.
		
UIG allocations have not been calculated for GFD 8th June, resulting in UIG allocations not being published in Gemini on time.
		
Gemini processes
		
All Shippers
		
The Calorific Values File (CVV) was rejected by Gemini, as it was outside of the acceptable validation range.
		
6/10/2019
		
6/10/2019
		
Closed
		


	
	

		
118
		
Closed
		
1007415
		
P2
		
N/A
		
N/A
		


		
AMT Market Flow application unavailable
		
 Customers unable to send or receive files
		
AMT Market Flow primary server was unavailable from 8:30am on 12th June 2019. As a result, Xoserve were unable to process incoming and outgoing files. 
		
AMT
		
All Customers
		
The overrunning of a file permissions script

Prevention – Improved identification of high CPU spikes and ongoing investigations with 3rd party vendor to address script overrunning.

		
6/12/2019
		
6/12/2019
		
Closed
		


	
	

		
119
		
Closed
		
1007416
		
P2
		
N/A
		
N/A
		


		
Xoserve Portal Service unavailable for customers
		
Users unable to access Xoserve Portal
		
All users unable to perform any operations in Xoserve Portal from 8:31am on 12/06/2019.
		
Portal
		
All Customers
		
A number of concurrent user sessions exceeding normal daily usuage

Prevention – uprgade to usuage permissions

		
6/12/2019
		
6/13/2019
		
Closed
		


	
	

		
120
		
Closed
		
1008921
		
P2
		
N/A
		
N/A
		


		
Users unable to access DES Portal
		
Low number of customers unable to access Data Enquiry Service 
		
11:52am Low number of customers were unable to access Data Enquiry
11:55am Service was resumed

		
Data Enquiry System (DES)
		
All Customers
		
Increased traffic in the system caused the application to run slower than normal. Service review or Portal, Offline services & Data Enquiry Service being carried out June 2019.
		
6/17/2019
		
6/17/2019
		
Closed
		


	
	

		
121
		
Closed
		
1009091
		
P2
		
N/A
		
N/A
		


		
UIG Allocations not published in Gemini
		
The allocations for Gas Flow Day 16th June 2019 not visible in Gemini 
		
Allocations have not been calculated for GFD 16th June and not published in Gemini until 19th June.  
		
Gemini processes
		
All Shippers
		
Allocation suite and invoice batch jobs had not completed delaying the allocation batch process. Full RCA expected 09/07/2019
		
6/18/2019
		
6/18/2019
		
Closed
		


	
	

		
122
		
Closed
		
1010254
		
P2
		
N/A
		
N/A
		


		
CMS Performance issues
		
Users are experiencing performance issues while accessing the application
		
10:23 P2 raised as Users experiencing performance issues with CMS application & internal users unable to upload files. Outage between 11.30 to 11:50 and again from 12:40 to 13: 15. Service resumed at 13:15.
		
CMS
		
All Customers
		
RCA expected 20/08/2019
		
6/21/2019
		
6/21/2019
		
Closed
		


	
	

		
123
		
Closed
		
963807
		
N/A
		
1311
1407
1422
1418
1441

		
N/A
		


		
Issues with customer reports
		
1311: Networks will be undercharging the price of gas to their customers

1407: Network is receiving incorrect emergency contact details within their files

1422: IGT's are not receiving emergency contact details 

1418: Incorrect isolation contact details issued in files

1441: Conflicting information held between two reports issued to Shippers
		
1311: The BOPRI report is issued to DNs monthly. Issue affects 1 GT where the AQ has dropped by a total of 1.7% since the previous month.

1407: Where a Shipper is providing new emergency contact details for a site, the National Grid Emergency File (EWS) is being populated with the updated details as required, however it is also containing the previous contact number within the 'Alternative Contact 2' field 

1422: Where a Shipper is providing new emergency contact details for an IGT site, the Daily Delta File (IDL) is not containing any emergency contact details 

1418: Legacy isolation contact details are not being correctly end dated within the National Grid Emergency File (EWS)

1441: The values in the Performance Assurance Report Register(PARR) for the 'No Meter Attached' and 'No Meter Attached but Data Flows Received' tabs do not agree to the corresponding values issued within the monthly Shipper Packs.
		
Reporting
		
Networks 
		


		
2/26/2019
		
10/1/2019
		
Closed
		
Defect 1311: Defect closed as code fix not required. 
Defect 1407: Deployed 5th August 2019
Defect 1418:Deployed 5th August 2019
Defect 1422: Deployed 1st October 2019
Defect 1441: Deployed 11th September 2019
	
	

		
124
		
Closed
		
943678   
		
N/A
		
1348
		
N/A
		


		
Incorrect NDM forecasts in Gemini
		
The effective temperature value for gas nominations in Gemini is incorrect which is causing significantly higher Non Daily Metered forecasts due to the temperature discrepancy.

All LDZs impacted
		
Multiple internal files are required to be processed in Gemini in a certain order to calculate the weather temperature for D-1, however due to the files not being processed in the required order, the effective temperature for Gas Day -1 is being calculated incorrectly.
		
Gemini processes
		
Shippers & Networks
		


		
12/28/2018
		
6/27/2019
		
Closed
		
Defect closed as files have been automated
	
	

		
125
		
Closed
		
968192
		
N/A
		
1366
		
N/A
		


		
Allocation Agent file not delivered (for a Shared Supply Meter Point (SSMP))
		
Agent requires the file in order to allocate energy between Sharing Users in Gemini

Minimal mpact as Xoserve are manually sending the files 
		
Comm Ops Agent File (CMA) which is sent to NG (Gemini)  3 times a day, is only being sent twice 
		
Gemini processes
		
Networks
		


		
3/8/2019
		
Aug-2019
		
Closed
		
Defect 1366: Deployed on 30th August 2019
	
	

		
126
		
Closed
		
985357
		
N/A
		
1371
		
N/A
		


		
Consumption Adjustment incorrectly rejecting following class change
		
Shippers are unable to amend adjustmemts where there has been a class change

No workaround currently in place, however any sites which are facing this issue can have Consumption Adjustment once the defect has been deployed
		
Where an Xoserve user manually processes a Consumption Adjustment on behalf of a Shipper, where there has been a class change from Class 1, 2 and 3 to Class 4, the system is incorrectly rejecting due to the adjustment period not being a valid meter read period. However the read period is correct and should be accepted.
		
Consumption Adjustment
		
All Shippers
		


		
5/6/2019
		
Aug-2019
		
Closed
		
Defect 1371: Deployed on 30th August 2019
	
	

		
127
		
Closed
		
990336
		
N/A
		
1404
		
N/A
		


		
System files not correctly processing into UK Link
		
Defect 1404: Shippers will be billed incorrectly if the file is not loaded into the system when the invoice is issued. 

As Shippers will not be billed until the file is successfully loaded into the system, there is no direct impact to customers.


		
1404: The Post Closeout Allocation file (PCA) which is an internal fie processed from Gemini to UK Link, is causing energy data for Interconnectors to not update in the system with the revised energy values from Gemini 


		
Energy
		
All Shippers
		
Post Closeout Allocation file is not automatically being processed as required. Technical team is manually having to upload the file into the system until fix is deployed.
		
6/17/2019
		
Aug-2019
		
Closed
		
Defect 1404: Deployed on 30th August 2019
	
	

		
128
		
Closed
		
1012333
		
P2
		
N/A
		
N/A
		


		
CMS services unavailable
		
Customer unable to carry out any actions in CMS
		
All users unable to perform any operations in CMS, identified at 07:13
		
CMS
		
All Customers
		
Configuration files were removed from server statup location, when system was rebooted the system could not locate the files, therefore system would not reboot.
		
6/28/2019
		
6/28/2019
		
Closed
		
CMS restored 10.32am
	
	

		
129
		
Closed
		
1010369
		
N/A
		

61026

		
N/A
		


		
Reads not being processed correctly
		
Potentially affect reconciliation and submission of future reads
		

61026: Shipper transfer estimate reads are being overwitten by Must Reads and Cyclic Reads for class 4 sites which should be rejected as they should only be overwitten by a replacement read.

		
Read Process
		
All Shippers
		


		
Dec-19
		
May-21
		
Closed
		

Defect 61026: Deployed on 29/05/2021

	
	

		
130
		
Closed
		
1013931
		
P2
		
N/A
		
N/A
		


		
Intermittent access issues for multiple shippers using Gemini
		
Customers unable to access Gemini and carry out any processes. 
		
Shippers did not have access to Gemini via the API and were unable to progress any automated processes and will not be able to complete any bulk uploads or downloads. 
		
Gemini processes
		
All Customers
		
Awaiting RCA from third party vendor
		
7/3/2019
		
7/3/2019
		
Closed
		
System restored
	
	

		
131
		
Closed
		
1015019
		
P2
		
N/A
		
N/A
		


		
Delay in publishing UIG Gas Nominations 
		
Shippers unable to determine how much gas they need to buy via online screen for next gas day due to information not being published on time in Gemini
		
Delay in publishing the UIG Gas Nominations for Gas Flow Day 6th, 7th and 8th July 2019
		
Gemini processes
		
All Shippers
		
Awaiting RCA from third party vendor
		
7/7/2019
		
7/7/2019
		
Closed
		
System restored
	
	

		
132
		
Closed
		
1016280
1018932
		
P1
		
N/A
		
N/A
		


		
Historic Emergency Contact & isolation contact details & 'alternative contact details' being issued in files
		
Gas Transporters could potentially use incorrect contact details in emergency situation
		
Historic Emergency & isolation contact details are being provided to the Networks and IGTs within the Daily Delta Files and Quartlery Delta Files (EDL, EWS, EQL, IDL & IQL). Code fix and data fix implemented to correct any corrupt data. Scenario also applied to 'alternative contact details' provided as part of PSR data.
		
SPA
		
All Gas Transporters
		
Due to data migration from legacy system, files not end-dating details following an update.
		
7/10/2019
		
7/10/2019
		
Closed
		
Code fix and data fix implemented to correct any corrupt data. 
	
	

		
133
		
Closed
		
1018468
		
P2
		
N/A
		
N/A
		


		
Potential delay in sending the UPI invoice support information files
		
Delay in customers receiving their supporting files therefore unable to validate or interrogate their invoice charges
		
Invoice issued as expected however the supporting files are not producing in the time expected.
		
Invoicing - General
		
Customers
		
Expected 23rd August 2019
		
7/15/2017
		
7/15/2019
		
Closed
		
Code fix implemented after testing it in pre-production environment. All the supporting information files were generated successfully in ISU. AMT Market flow team confirmed that all the files has been delivered to shippers within SLA and delivery receipt received 
	
	

		
134
		
Closed
		
1023187
		
P2
		
N/A
		
N/A
		


		
Delay in processing read files 
		
Delay for customers receiving their read response file notifying if the reads have been accepted or rejected.
		
Read files for Class 3 and 4 meter points received on 31st July and 1st August were not processed until 2nd August. Although the SLA is 2 business days the files are usually processed and a response sent within 1 business day.
		
Read process
		
All Shippers
		
 Files for the 31st July were held in the system which meant any subsequent read files were also held. Full RCA expected on 23/08/2019.
		
8/2/2019
		
8/2/2019
		
Closed
		
Files received on the 31st July were not processed and responed to until 2nd August 2019
	
	

		
135
		
Closed
		
931836
		
P2
		
N/A
		
N/A
		


		
Multiple Job Failures in Gemini Entry System
		
 This will impact shipper's gas buying decision
		
Demand did publish for 00:00 hrs.
Latest NDM nomination and UIG nomination will not be visible on the screen
		
Gemini processes
		
All Shippers
		
Expected 23rd August 2019
		
8/2/2019
		
7/7/2019
		
Closed
		
System restored at 16:00
	
	

		
136
		
Closed
		
1029165
		
P2
		
N/A
		
N/A
		


		
Demand Attribution not published for 10th hour bar
		
Shippers will not be able to see the latest value of Demand Attribution at 10 AM
		
Demand Attribution was not published for 10th hour bar. P2 was raised and information was available in Gemini at 11.18am
		
Gemini processes
		
All Shippers
		
TBC
		
8/22/2019
		
8/22/2019
		
Closed
		


	
	

		
137
		
Closed
		
1034648
		
P2
		
N/A
		
N/A
		


		
IX - Connectivity Issue for 1 customer
		
Files will not be delivered to customer via IX
		
IX - EFT not able to connect to customer site due to FTP login failure. Incident raised on 08/09/2019, 13:37 
		
IX
		
Shipper
		
FTP File Transfer login failed.
		
9/8/2019
		
9/11/2019
		
Closed
		
IX restored at 22:30, backlog of files processed & sent sucessfully.
	
	

		
138
		
Closed
		
1039441
		
P2
		
N/A
		
N/A
		


		
Data Enquiry Service unavailable for customers
		
Customers unable to log into DES
		
Customers unable to log into Data Enquiry System (DES), raised on 18/09/2019 09:17
		
Data Enquiry System (DES)
		
All Customers
		
2 of the 4 BW servers were unresponsive due to high CPU utilisation. Impacting jobs were stopped and service resumed.
		
9/18/2019
		
9/18/2019
		
Closed
		
Service restores on 18/09/2019 09:28
	
	

		
139
		
Closed
		
1042583
		
P2
		
N/A
		
N/A
		


		
Delay in the production of the NTS Commodity invoices
		
Potential delay to receiving the NTS Commodity invoice, if contingency triggered customers may also receive their invoice via email.
		
The NTS Commodity invoice was taking longer than normal to generate in Gemini impacting the issue of the invoice
		
NTS Commodity Invoice
		
Shippers & National Grid
		
Initial root cause is the data growth due to the GB Charging implementation. However this additional data is not used in the invoice. Fix implemented.
		
9/25/2019
		
9/25/2019
		
Closed
		
All invoices were produced, validated & issued by 19:15.
	
	

		
140
		
Closed
		
1046652
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
Lastest Gas Nominations not published
		
Latest value of Demand Attribution not published at 12 AM for gas day 5th October. P2 was raised and information was available in Gemini at 01.35am
		
Gemini processes
		
All Shippers
		
Analysis ongoing
		
10/5/2019
		
10/5/2019
		
Closed
		
Incident raised at 00:32. Resolved at 01:45.
	
	

		
141
		
Closed
		


		
N/A
		
1465
		


		


		
Delay in sending invoice
		
Shippers have not received their financial invoice on time
		
The Compression invoice (CPN) for the billing month July 19 has not been on the expected date (17th Business Day of the Month) 
		
Invoicing Processes
		
All Shippers
		


		
9/19/2019
		
12/6/2019
		
Closed
		
Defect: 1465 Deployed 29th November 2019
	
	

		
142
		
Closed
		
1020078
		
N/A
		
1471
		
N/A
		


		
MI / Reports
		
Incorrect data issued in MI or reports
		
Ratchet Report is reflecting incorrect financial values
		
Ratchets
		
All Shippers
		
Analysis ongoing
		
10/1/2019
		
12/6/2019
		
Closed
		
Defect 1471:  Deployed 29th November 2019
	
	

		
143
		
Closed
		
1036299
		
N/A
		
62512
		
N/A
		


		
Portfolio update reports/files
		
Incorrect or incomplete data issued in portfolio files to customers
		
62512: Following a Gas Transporter site transfer, the B43 record within the IDL file should be sent to both networks and with  'N' (new code) to New network and 'D' (deletion code) to old network, however both networks are receiving 'U' (update code)
 
		
Portfolio Files
		
Networks & IGTs
		
Analysis ongoing
		
10/2/2019
		
Sep-20
		
Closed
		
Defect 62512: Deployed 21st August 2020
	
	

		
144
		
Closed
		
1045449
		
N/A
		
60967
		
N/A
		


		
Missing data from Shipper response files
		
Impacting Greenfield sites only . Shippers will not have the correct EUC values effective 1st October
		
The EUC effective 1st October is incorrect for greenfield sites 
		
SPA - Files
		
Shippers
		
Analysis ongoing
		
10/4/2019
		
12/6/2019
		
Closed
		
Defect 60967: Deployed 16th May 2020
	
	

		
145
		
Closed
		
1040365
		
N/A
		
1481
		
N/A
		


		
Data not being displayed in DES
		
Customers are unable to review meter exchange reads in Data Enquiry Service (DES) 
		
Read Details screen within DES is not showing meter exchange reads
		
Data Enquiry System (DES)
		
Shippers & Networks
		
Analysis ongoing
		
10/14/2019
		
1/10/2019
		
Closed
		
Defect 1481: Deployed 15th November 2019
	
	

		
146
		
Closed
		
1048763
		
P2
		
N/A
		
N/A
		


		
EU Gas Nominations  
		
Shippers are not able to confirm EU nominations
		
Shippers are not able to confirm EU nominations. One shipper affected and 1 TSO. 
		
Gas Nomination processes
		
Shippers
		
Analysis ongoing
		
10/11/2019
		
10/11/2019
		
Closed
		
Incident raised at 09:06. Gemini team contacted all shippers that placed EU nominations. Incident resolved at 11:45
	
	

		
147
		
Closed
		
1054151
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
Updated NDM Gas Noms not published
		
Demand Attribution not published at 24th Hour for 27th and 28th October 2019. Demand Attribution and UIG nomination for the 24th hour not published for the Gas Day 27th October 2019. 
		
Gas Nomination processes
		
Shippers
		
Analysis ongoing
		
10/28/2019
		
10/28/2019
		
Closed
		
Incident raised at 00:45. Resolved at 03:15 
	
	

		
148
		
Closed
		
1059126
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
NDM Gas Noms not updated on Gemini until 22:40
		
Demand Attribution has not been published for 21st hour for gas day 12th Nov 2019
		
Gas Nomination processes
		
Shippers
		
Receipt of duplicate files from the Attribution Data Suppliers. 
		
11/12/2019
		
11/12/2019
		
Closed
		
Incident raised at 21:22. Resolved at 22:30.
	
	

		
149
		
Closed
		
1059193
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
NDM Gas Noms not updated on Gemini until 03:13
		
NDM nomination has been published with wrong values
		
Gas Nomination processes
		
Shippers
		
Receipt of duplicate files from the Attribution Data Suppliers. 
		
11/13/2019
		
11/13/2019
		
Closed
		
Incident raised at 00:15. Resolved at 03:15. Ticket raised for monitoring 
	
	

		
150
		
Closed
		
1061625
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
Shippers will not be able to perform DM nominations & NDM Noms & UIG not published.
		
NDM nomination not be published for 21 hours due meaning shippers will not be able to perform DM nominations
		
Gas Nomination processes
		
Shippers
		
Receipt of duplicate files from the Attribution Data Suppliers. 
		
11/21/2019
		
11/22/2019
		
Closed
		
Incident raised at 21:39. Resolved at 00:23. Ticket raised for monitoring 
	
	

		
151
		
Closed
		
1067763
		
P2
		
N/A
		
N/A
		


		
NDM Gas Nominations
		
NDM Gas Noms not published
		
Demand Attribution has not been published for 21 hour for gas day for gas day 9th December
		
Gas Nomination processes
		
Shippers
		
Demand Attribution suppliers failed to send files on time.
		
12/9/2019
		
12/9/2019
		
Closed
		
Incident raised at 21:50. Resolved at 22:19
	
	

		
152
		
Closed
		
1069863
		
P2
		
N/A
		
N/A
		


		
CMS Unavailable
		
Customers unable to log into CMS
		
CMS application was unavailable for end users to access. Users unable to perform any operations in CMS.
		
CMS
		
All Customers
		
A database utilised by the service had connections that were not being released and stopping new connections from being made. Database service re-started.
		
12/13/2019
		
12/13/2019
		
Closed
		
Incident raised at 13:14. Resolved at 16:15
	
	

		
153
		
Closed
		
1072122
		
P2
		
N/A
		
N/A
		


		
Xoserve Portal Service unavailable for customers
		
Users unable to access Xoserve Portal
		
All users unable to perform any operations in Xoserve Portal 
		
Portal
		
All Customers
		
Our communications provider had a fault with their network equipment resulting in traffic to the portal was inaccessible.
		
12/19/2019
		
12/19/2019
		
Closed
		
Incident raised at 09:52. Resolved at 13:30
	
	

		
154
		
Closed
		
N/A
		
N/A
		
N/A
		
TBC
		
XCE1859
		
Late reads received via Must Read process causing downstream issues
		
The meter reads are causing high value AQs to be calculated and reconciliation charges, credits and debits.
There is currently a backlog of meter reads held by MRAs that still require to be loaded into the system. 
		
On receipt of aged meter reads submitted by Meter Reading Agencies (some over 2 years old), the reads are being incorrectly accepted where subsequent reads have already been loaded into the system. 
		
Must Read process
		
All Customers
		
Analysis ongoing
		
11/4/2019
		
TBC
		
Closed
		
Discussions taking place with DN and Shippers. Update provided at August CoMC on Joint Office under Contract Management Committee (CoMC) meetings: https://www.gasgovernance.co.uk/DSC-Contract  
	
	

		
155
		
Closed
		
1052131
		
N/A
		
61003
		
N/A
		


		
Incorrect data held in read files
		
Incorrect data issued in read files to customers
		
When multiple estimated reads are generated, the Billable Meter read (.MBR) and Unbundled Read Notification File  (.URN) are being populated with the incorrect Shipper Nomination Reference number,
		
SPA - Files
		
Shippers
		
Analysis ongoing
		
12/16/2019
		
3/1/2020
		
Closed
		
Defect 61003: Deployed 24th April 2020
	
	

		
156
		
Closed
		
1069029
		
N/A
		
61004
		
N/A
		


		
Issues with class change requests
		
Class change for sites are delayed and may result in customers potentially being charged incorrect rates
		
Class change requests which are received over the weekend period are being rejected with error code 'CLS00001' (Insufficient notice given to change the class). Effective dates provided for these requests are 5 business days away from the processing date and falls on the next weekend. These requests should not have been rejected as 5 Business Days notice period have been provided for these requests. 
		
SPA - Update of Supply Meter Point Details
		
Shippers
		
Analysis ongoing
		
12/19/2019
		
3/1/2020
		
Closed
		
Defect 61004: Deployed 6th March 2020
	
	

		
157
		
Closed
		
1077958
		
P2
		
N/A
		
N/A
		


		
DES performance / connectivity issue
		
Performance issues and intermittent connectivity issues for customers
		
On 13th January at 08:45 it was reported that users were facing intermittent connectivity and slowness while accessing the Xoserve DES Portal. 
		
Data Enquiry System (DES)
		
All Customers
		
Peterborough Data Centre circuit. A project change to a network configuration was incorrectly implemented. Our suppliers corrected the configuration.
		
1/13/2020
		
1/13/2020
		
Closed
		
Incident raised at 08:45, resolved at 14:20
	
	

		
158
		
Closed
		
1078537
		
P2
		
N/A
		
N/A
		


		
Demand estimation not available on Gemini
		
Delay in publishing updated Demand Attribution in Gemini for 14th January 2020 
		
For GFD 14th January there was a delay in publising the updated demand estimation.
		
Gemini processes
		
All Customers
		
As a part of DC exit project, there was a change performed on test DNS server which replicated back to production environment which caused the issue. Changes were reverted to resolve the incident.
		
1/14/2020
		
1/14/2020
		
Closed
		
Incident raised at 15:22, resolved at 15:51
	
	

		
159
		
Closed
		
1078732
		
P2
		
N/A
		
N/A
		


		
Users unable to access CMS application
		
Customers unable to access and carry out updates in CMS
		
On 15th January at 11:22 it was reported that users were unable to access CMS. 
		
CMS
		
All Customers
		
A server hardware fault caused the service to fail. 
		
1/15/2020
		
1/15/2020
		
Closed
		
Incident raised at 11:22, resolved at 16:16
	
	

		
160
		
Closed
		
1081180
		
P2
		
N/A
		
N/A
		


		
Gemini application was unavailable for National Grid Control Room users
		
National Grid users were unable to access Gemini application for 45 mins
		
On 24th January at 07:16 NG Control Room were unable to access Gemini.
		
Gemini processes
		
National Grid
		
A project change on a network configuration was incorrectly implemented 
		
1/24/2020
		
1/24/2020
		
Closed
		
Incident raised at 07:16, resolved at 08:00
	
	

		
161
		
Closed
		
1083700
		
P2
		
N/A
		
N/A
		


		
Users unable to access Portal services
		
Users are not able to access the Xoserve Portal services
		
On 31/01/2020 at 15:23 it was reported that Users were unable to access Portal services
		
Portal 
		
All Customers
		
Our suppliers communications provider encountered an internal network issue impacting a large number of customers in London & Leicestershire.
		
1/31/2020
		
1/31/2020
		
Closed
		
Incident raised at 15:23, resolved at 17:00
	
	

		
162
		
Closed
		
1084471
		
P2
		
N/A
		
N/A
		
XCE1876
		
IX unavailable
		
Customers unable to send or receive files via the IX
		
On 3rd February 113 customers were affected by the IX not being available to transmit incoming & outgoing files.
		
IX
		
All customers
		
Network outage
		
2/3/2020
		
2/3/2020
		
Closed
		
N/A
	
	

		
163
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1886
XCE1896
		
Unresolved System Exceptions (BI49)
		
Reconciliations are being held
		
For MPRNs that are isolated but an incremented read has been received, the system will accept the meter reading but unable to process as the meter point is isolated. A system exception (B149) is raised. We are currently unable to resolve these Exceptions. As at Feb 2020 there are 8,000 exceptions. If the meter point is consuming gas this energy is not being alloated to the meter point & will be picked up in UIG. A CR has been raised to reject these meter readings however the change is not likely to be implemented until 2021. A process is required to resolve these exceptions which will continue to increase. 
		
Reconciliation - Exceptions
		
Shippers & Networks
		
Exception raised but unable to resolve and process reconciliations.
		
12/1/2019
		
Aug-20
		
Closed
		
Consumption adjustments of zero to input to release the reconciliations that have been held in the system. The reconciliations will be invoiced in the July Amendment invoice.
	
	

		
163
		
Closed
		
1089288
		
P2
		
N/A
		
N/A
		


		
IX unavailable
		
Customers unable to send or receive files via the IX
		
File transfer services across the IX network stopped working. File delivery & receipt were delayed.
		
IX
		
All Customers
		
Connectivity to internal storage areas was disrupted
		
2/14/2020
		
2/14/2020
		
Closed
		
Incident raised at 16:52, resolved at 17:10
	
	

		
164
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		


		
AQ calculation for Class 3 meter points
		
AQ calculation is only able to use meter reads dated the 5th of the month or earlier in the AQ calculation. 
		
Energy for Class 3 & 4 meter points is received daily after exit close out; these are called energy factors. The energy factors are used for Reconciliation & AQ calculation. When the AQ calculation process is triggered (on the 12th) energy fatrors are only available for meter reads dated the upto the 4th (energy factors received in UKLink 7 days after the GFD). This therefore means that although reads dated post the 4th to the 10th will be accepted and will trigger the AQ process they will not be included in the calculation of the AQ (consumption will not be included). 
		
AQ process
		
Shippers & Networks
		
System design
		
2/1/2020
		
TBC
		
Closed
		
Included in the process and design improvements as part of the AQ Taskforce. Included on AQ Issue Register
	
	

		
164
		
Closed
		
1090360
		
P2
		
N/A
		
N/A
		


		
Performance Issues with CMS
		
Customers unable to perform any actions in the system
		
Although Users were able to log into the system, due to performance delays users were unable to carry out any actions within the application.
		
CMS
		
All Customers
		
A long running job caused connections to the CMS data base to become locked
		
2/17/2020
		
2/17/2020
		
Closed
		
Incident raised at 10:26, resolved at 12:10
	
	

		
165
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		


		
Duplicate Confirmation requests accepted
		
If a Shipper submits an Objection against the duplicate Confirmation in error, although this is accepted the objection will not be processed and the Confirmation will become effective.
		
Where the Shipper submits duplicate Confirmation requests, the system will accept the requests, it should reject any duplicate requests.

Process implemented to monitor daily. Any duplicate confirmations will be rejected however a rejection notification will not be issued. The relevant Shippers will be advised. 
		
Transfer of Ownership
		
Shippers
		


		
2/1/2020
		
TBC
		
Closed
		
Monitoring will continue and where duplicate Confirmations have been received the Shipper will be advised.
	
	

		
165
		
Closed
		
1090505
		
P2
		
N/A
		
N/A
		


		
IX unavailable
		
Customers unable to send or receive files via the IX
		
On 17th February all customers were affected by the IX not being available to transmit incoming & outgoing files.
		
EFT
		
All Customers
		
A project change on a network configuration was incorrectly implemented 
		
2/17/2020
		
18/02/2020  
		
Closed
		
Incident raised at 14:04, resolved at 17:55
	
	

		
166
		
Closed
		
1090966
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		
Limited connectivity to Gemini for customers
		
A widespread outage of national network provider's internal network impacted multiple customers, including Xoserve
		
Gemini processes
		
All Customers
		


		
2/18/2020
		
2/18/2020
		
Closed
		
Incident raised at 08:19, resolved at 09:00
	
	

		
167
		
Closed
		
1091219
		
P2
		
N/A
		
N/A
		


		
Users unable to access Xoserve Services Portal 
		
Customers are not able to access the Xoserve Portal services
		
On 18/02/2020 at 12:38 Users were unable to access Portal services
		
Portal 
		
All Customers
		
The service that controls authentication to the application stopped allowing users to access the site
		
2/18/2020
		
18/02/2020  
		
Closed
		
Incident raised at 12:38, resolved at 15:59
	
	

		
168
		
Closed
		
1091296
		
P2
		
N/A
		
N/A
		


		
Performance Issues with CMS
		
Customers unable to perform any actions in the system
		
Although Users were able to log into the system, due to performance delays users were unable to carry out any actions within the application.
		
CMS
		
All Customers
		
Processes were not being triggered correctly and updates to the database were not completing
		
2/18/2020
		
18/02/2020  
		
Closed
		
Incident raised at 13:53, resolved at 18:19
	
	

		
169
		
Closed
		
1091397
		
P2
		
N/A
		
N/A
		
XCE1881
		
Performance issues with IX
		
The processing of customer files were delayed
		
There was a delay in inbound file processing for a number of customers
		
IX
		
All Customers
		
Whilst restoring the system for incident 1090505, incorrect configuration changes were applied to the system, which caused delays in performance.
		
2/18/2020
		
3/19/2020
		
Closed
		
Incident raised at 20:44, resolved at 12:06 on 19th Feb
	
	

		
170
		
Closed
		
1092190
		
P2
		
N/A
		
N/A
		


		
Performance Issues Portal services (DES & CMS)
		
Customers may have experienced performance issues within a number of services
		
Performance issues with CMS and Portal applications
		
CMS and Portal
		
All Customers
		
There was a degradation of performance when the system was connecting to an internal database. The root cause of this is not yet known.
		
2/21/2020
		
2/21/2020
		
Closed
		
Incident raised at 05:55, resolved at 14:45
	
	

		
171
		
Closed
		
1092987
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		
Customers unable to access or perform any operations in Gemini
		
Customers were unable to log into the Gemini application
		
Gemini processes
		
Shippers and Networks
		
Issues on the customers network
		
2/22/2020
		
2/22/2020
		
Closed
		
Incident raised at 01:08, resolved at 03:10
	
	

		
172
		
Closed
		
1095734
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with NG Metering
		
Customer files were delayed 
		
Delay for customers with receiving their daily meter reading files (MDR) and Meter Reading & Access Instruction files (MRI) 
		
IX
		
DMSP and Shippers
		
An incorrect configuration applied to the Network equipment, resulted in communication failure across the IX network.
		
2/26/2020
		
2/26/2020
		
Closed
		
Incident raised at 01:17, resolved at 13:25
	
	

		
173
		
Closed
		
1099808
		
P2
		
N/A
		
N/A
		


		
Delay in processing files 
		
Customer inbound files were delayed
		
Processing of inbound file was delayed due to performance issues
		
UK Link
		
All Customers
		
File transmissions failed post a migration of a file transfer mechanism between data centres, Root cause unknown and being investigated.
		
3/2/2020
		
3/2/2020
		
Closed
		
Incident raised at 13:13, resolved at 19:30
	
	

		
174
		
Closed
		
1096640
		
P2
		
N/A
		
N/A
		
XCE1883
		
Misalignment of MPRN data  visible to customers in DDP dashboard
		
Customer inbound files were delayed
		
Service outage & misalignment of MPRNs in 'Reads Insight' dashboard
		
Data Discovery Platform (DDP)
		
Shippers & Networks
		
A processing issue in the DDP tool caused a misalignment in MPRN data
		
2/27/2020
		
3/9/2020
		
Closed
		
Incident raised at 16:51, resolved following full refresh of data on 09/03/2020
	
	

		
175
		
Closed
		
1079076
		
N/A
		
61699
62133
62379
		
N/A
		


		
Data displayed incorrectly within DES
		
Customers unable to retrieve up to date details from Data Enquiry, however data can be found via the Data Search Line.
		
61699: When there are updates made in the system for 'Meter location', 'Meter Mechanism Code' and 'Gas Act Owner', the data is not being correctly updated in Data Enquiry, and is showing the previous values.
62133: 'Meter capacity' field within DES is displaying as blank for meter points
62379: Incorrect transporter details are being displayed within DES for IGT sites following Gas transporter change of ownership.
		
Data Enquiry System (DES)
		
All Customers
		
TBC
		
3/5/2020
		
Sep-20
		
Closed
		
Defect 61699: Deployed 8th May 2020
Defect 62133: Deployed 7th August 2020
Defect 62379: Deployed 7th August 2020
	
	

		
176
		
Closed
		
1104986
		
P2
		
N/A
		
N/A
		


		
Delay in processing inbound files
		
Customer inbound files were delayed
		
There was a delay in processing inbound files for a number of customers due to connectivity issues between UK Link and EFT
		
UK Link
		
All customers
		
Following a refresh of the UK Link file transfer system, an incorrect configuration resulted in files being incorrectly routed to an different environment.
		
3/16/2020
		
3/16/2020
		
Closed
		
Incident raised at 14:34, resolved at 18:20
	
	

		
177
		
Closed
		
1105842
		
P2
		
N/A
		
N/A
		


		
Demand Attribution values published were high due to system issue
		
Shippers would be using incorrect / unrealistic NDM Nomination values
		
Due to a system issue on 19th March, the 08:00 Forecast CWV values for Gas Days 19th and 20th March 2020 used in the morning’s NDM Nominations run were incorrect resulting in unrealistic NDM Nomination values. The 12:00 Forecast CWV values were calculated correctly and used in the 13:00 NDM Nominations run which resulted in more realistic NDM Nomination values being displayed.
		
Gemini
		
Shippers
		
A weather file transferred from UK Link contained zero values. Root cause unknown and being investigated.
		
3/19/2020
		
3/19/2020
		
Closed
		
Incident raised at 10:57, resolved at 14:04
	
	

		
178
		
Closed
		
1106922
		
P2
		
N/A
		
N/A
		


		
Performance issues with Service Desk Plus
		
Customers unable to perform any actions in the system
		
Customers unable to log / track tickets within Service Desk Plus application. 
		
Service Desk Plus
		
All customers
		
The root cause is unknown and being investigated by Xoserve support teams and the support vendor.
		
3/24/2020
		
3/24/2020
		
Closed
		
Incident raised at 10:17, resolved at 12:11.
	
	

		
179
		
Closed
		
1106982
		
P2
		
N/A
		
N/A
		


		
Performance issues with Service Desk Plus
		
Customers unable to perform any actions in the system
		
Customers unable to log / track tickets within Service Desk Plus application. 
		
Service Desk Plus
		
All customers
		
Incoming calls to the service desk number were not being forwarded to the analysts due to a BT telephony portal issue.
		
3/27/2020
		
3/27/2020
		
Closed
		
Incident raised at 07:00, resolved at 08:16.
	
	

		
180
		
Closed
		
1110826
		
P2
		
N/A
		
N/A
		


		
Performance issues with Data Enquiry Service
		
Limited connectivity to DES for customers
		
Performance issues with the Data Enquiry Service due to a delay of processing internal files within the system.
		
Data Enquiry Service (DES)
		
All customers
		
The file transfer system became unresponsive and stopped sending files. Root cause unknown and being investigated 
		
4/2/2020
		
4/2/2020
		
Closed
		
Incident raised at 01:00, resolved at 04:15
	
	

		
181
		
Closed
		
1113261
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		
Customers unable to access or perform any operations in Gemini
		
Following the implementation of 'RFC:10117 - Gemini Spring 2020 Release (Contingency)', a technical issue was identified with the deployment. As a result, Gemini was unavailable for customers whilst this was being investigated. 
		
Gemini
		
All customers
		
A project change on Gemini was unable to be implemented correctly and the backout plan was instigated
		
4/5/2020
		
4/5/2020
		
Closed
		
Incident raised at 05:39, resolved at 06:30
	
	

		
182
		
Closed
		
1113834
		
P2
		
N/A
		
N/A
		


		
Shippers unable to process nominations in Gemini 
		
Customers unable to process nominations for decreasing quantity following implementation of Gemini Spring 2020 Release. Workaround in place to process the nominations.
		
Following the implementation of Gemini Spring 2020 Release, nominations were not getting completed for shippers when the nomination quantity had been decreased in Gemini. Workaround was however in place to process all nominations that were affected.
		
Gemini
		
Shippers
		
An incorrect project deployment and a design flaw caused nomination locks and incorrect allocated values
		
4/6/2020
		
4/6/2020
		
Closed
		
Incident raised at 01:30, resolved at 02:00
	
	

		
183
		
Closed
		
1114066
		
P2
		
N/A
		
N/A
		


		
Performance issues with CMS
		
Limited connectivity to CMS for all customers
		
Performance issues with CMS
		
CMS
		
All customers
		
High levels of database activity prevented new connections from being made and is currently being investigated
		
4/6/2020
		
4/6/2020
		
Closed
		
Incident raised at 12:20, resolved at 14:30
	
	

		
184
		
Closed
		
1115266
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		
Customers unable to access or perform any operations in Gemini
		
Due to a high number of jobs running in the system, Gemini was unavailable for customers for 19 minutes.
		
Gemini
		
All customers
		
A high number of database transactions prevented any new connections from being made. Root cause being investigated
		
4/10/2020
		
4/10/2020
		
Closed
		
Incident raised at 02:10, resolved at 03:02
	
	

		
185
		
Closed
		
1116573
		
P2
		
N/A
		
N/A
		


		
Users unable to access Gemini
		
Customers unable to access or perform any operations in Gemini
		
Gemini application was inaccessible for all customers due to a database server being down. As a result, Shippers would not have been able to place nominations during this period.
		
Gemini
		
All customers
		
A Gemini database server became unresponsive due to a memory overflow. Root cause unknown and being investigated
		
4/14/2020
		
4/15/2020
		
Closed
		
Incident raised at 23:11, resolved at 02:21
	
	

		
186
		
Closed
		
1100348
		
N/A
		
61941
62185

		
N/A
		


		
Issues with reconciliation process
		
Reconciliation charges may be incorrect
		
61941: Reconciliation process is working incorrectly, between check to check reads due to the system being unable to provide the correct consumption and energy for the billable device exchange date. 
62185: Following the implementation of a change request, which relates to updating an LDZ. An incorrect final transfer read (FINT) is being updated in the system.

		
Reconciliation
		
Shippers & Networks
		
Analysis ongoing
		
3/5/2020
		
Aug-20
		
Closed
		
Defect 61941: Deployed 3rd July 2020
Defect 62185: Deployed 7th August 2020
	
	

		
187
		
Closed
		
1121112
		
P2
		
N/A
		
N/A
		


		
Demand Attribution not published for 21 hour bar
		
No impact to customer as contingency activities was sucessfully undertaken.
		
The scheduled job to show the Demand Attribution values for 21st hour bar did not succesfully run.
		
Gemini processes
		
All Shippers
		
Late file delivery from National Grid systems delayed processing within Gemini
		
4/24/2020
		
4/24/2020
		
Closed
		
Incident raised at 22:02, resolved at 23:07
	
	

		
188
		
Closed
		
1122743
		
P2
		
N/A
		
N/A
		


		
Delay in processing inbound files
		
Customer inbound files were delayed
		
There was a delay in processing inbound files for a number of customers due to connectivity issues between UK Link and EFT
		
UK Link
		
All Customers
		
There was intermittent connectivity issues observed between the file transfer service and application servers
		
4/30/2020
		
4/30/2020
		
Closed
		
Incident raised at 16:59, resolved at 20:53
	
	

		
189
		
Closed
		
1123482
		
P2
		
N/A
		
N/A
		


		
Demand Attribution not published for 12am 
		
Shippers will not be able to see the latest value of Demand Attribution at 12 AM
		
Demand Attribution was not published for 12am hour for gas day 1st and 2nd May
		
Gemini processes
		
All Shippers
		
Late file delivery from National Grid systems delayed Demand Attribution processing within Gemini.
		
5/2/2020
		
5/2/2020
		
Closed
		
Incident raised at 01:36, resolved at 02:39
	
	

		
190
		
Closed
		
1125503
		
P2
		
N/A
		
N/A
		


		
Demand Attribution not published for 16th hour
		
Shippers will not be able to see the latest value of Demand Attribution 
		
Demand Attribution was not published for 16th hour for gas 7th and 8th May
		
Gemini processes
		
All Shippers
		
Late file delivery from National Grid systems delayed Demand Attribution processing within Gemini.
		
5/7/2020
		
5/7/2020
		
Closed
		
Incident raised at 14:49, resolved at 17:30
	
	

		
191
		
Closed
		
1125621
		
P2
		
N/A
		
N/A
		


		
EU nominations will not be confirmed in Gemini
		
Files could not be processed in Gemini affecting EU Gas Nominations
		
Files could not be processed in Gemini meaning EU Gas Nominations could not be confirmed for GNI TSO. No issue with IUK or BBL TSO.
		
Gemini processes
		
All Shippers
		
The offshore partner had implemented an infrastructure configuration change without interaction or notification to Xoserve, leading to an inability to transmit files into Gemini.
		
5/7/2020
		
5/7/2020
		
Closed
		
Incident raised at 22:20, resolved at 23:00
	
	

		
192
		
Closed
		
1126124
		
P2
		
N/A
		
N/A
		


		
Electronic File Transfer (EFT) Application disconnected 
		
Electronic File Transfer (EFT) Application disconnected from the production environment 
		
EFT disconnected from the production system impacting incoming & outgoing files to customers & Gemini. This impacted Gemini process and there was a delay in publishing the Line for 19th,20th 21st and 22nd hour bar and has been published at 22:20
		
All processes
		
All Customers
		
During a project change a software fault was  encountered during a network device configuration update causing the loss of connectivity.
		
5/9/2020
		
5/7/2020
		
Closed
		
Incident raised at 19:42, resolved at 21:30
	
	

		
193
		
Closed
		
1127568
		
P2
		
N/A
		
N/A
		


		
Demand Attribution not published for 5th & 6th hour
		
Shippers will not be able to see the latest value of Demand Attribution 
		
Demand Attribution was not published for 5th & 6th hour for gas day 10th May
		
Gemini processes
		
All Shippers
		
During a project change to rectify a network device software fault (1126124) issues were encountered during the upgrade causing loss of connectivity.
		
5/10/2020
		
5/10/2020
		
Closed
		
Incident raised at 06:19, resolved at 08:55
	
	

		
194
		
Closed
		
1131627
		
P2
		
N/A
		
N/A
		


		
Line pack not published for 0 and 1st hour bar.
		
Shippers would not be able to see the line pack details in Gemini system.
		
Line pack not published for 0 and 1st hour bar due to connectivity issue between EFT and Gemini FX and Control-M EM. However the UK Link, Gemini and CMS system were available during the issue.
		
Gemini processes
		
All Shippers
		
Unknown issues caused a loss of connectivity. Xoserve teams are working with network supplier to understand the root cause.
		
5/19/2020
		
5/19/2020
		
Closed
		
Incident raised at 00:47, resolved at 02:50
	
	

		
195
		
Closed
		
1124866
		
N/A
		
N/A
		
N/A
		
XCE1889
		
Delay in the notification of transfer of IGT to Shippers
		
Shippers will be holding the incorrect IGT for their CSEP meter points following a transfer of IGT effective on 1st May 2020.
		
A notification to Shippers advising of the MPRNs transfering IGTs (STN file) was not issued for all affected MPRNs. The file was issued however a number of MPRNs were not included in the file.  
		
All processes
		
All Shippers
		
Under analysis. Record 2591 raised to investigate.
		
5/5/2020
		
5/28/2020
		
Closed
		
Communication sent to impacted Shippers and the file issued containing the missed records.
	
	

		
196
		
Closed
		
1132344
		
N/A
		
63026
		
N/A
		
XCE1890
		
Contact Details for LSP sites not being end dated in UKLink following transfer of ownership.
		
Shipper: UKLink may hold incorrect customer contact details for MPRNs
IGTs/DNs:
Portfolio updates will contain the incorrect details
		
Customer contact details are provided by the registered Shipper of large supply points. These are recorded in UK Link and sent onto Gas Transporters.
When an outgoing Shipper has provided customer contact data (emergency or end user details) for a large supply point (S38 record), and the incoming Shipper of the meter point does not update customer contact details (S66 record) within the confirmation file (CNF), the historic contact details are not being end dated, and therefore being incorrectly retained in the system. 
2,903 meter points have been affected by this issue across the industry
		
Supply Point Updates
		
All Customers
		
System functionality does not end date customer contact details for LSP following a transfer of ownership. 
		
5/27/2020
		
end of July 2020
		
Closed
		
System fix implemented 27th June 2020. Monitoring of the files will take place to ensure updates are applied correctly & issued in reports correctly.
	
	

		
197
		
Closed
		
1139534
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with Xoserve Portal
		
Customers were unable to access the Xoserve portal & Gemini
		
Customers trying to place EU Nominations on Gemini would have been unable to, DES users would have been unable to access their portfolio information and some customer would not have been able to log tickets via the Service Desk portal.
		
Xoserve Portal
		
All Customers
		
Internet Service issues
		
6/9/2020
		
6/9/2020
		
Closed
		
Incident raised at 01:40, resolved at 02:30
	
	

		
197
		
Closed
		
1085669
		
N/A
		
61491
		
N/A
		


		
Incorrect data sent within AAQ file
		
Customers receiving incorrect information relating to their meter points
		
When the exit zone / LDZ is being changed for a future date, the incorrect meter ID and exit zone details are being sent in the AAQ file
		
Gemini
		
Shippers & Networks
		
Analysis ongoing
		
2/21/2020
		
TBC
		
Closed
		
Defect 61491: Deployment 3rd July 2020
	
	

		
198
		
Closed
		
1140025
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with EFT and IX
		
Customers will be unable to send or receive files.
		
File transfer services across the IX network stopped working. File delivery & receipt were delayed.
		
IX and EFT
		
All Customers
		
Due to issues occurring during a supplier’s planned maintenance activity, approximately 40% of connections on the IX network were unavailable.
		
6/9/2020
		
6/9/2020
		
Closed
		
Incident raised at 04:46, resolved at 05:30
	
	

		
198
		
Closed
		
1095021
		
N/A
		
61864
		
N/A
		


		
Incorrect details stored following transfer of ownership 
		
Old contact details are being held in the system, however workaround is in place
		
When a new confirmation request is received for a Shared Supply Meter Point (SSMP), the previous emergency contact details are being incorrectly retained in the system, and associated to the incoming Shipper
		
Transfer of Ownership
		
Shippers
		
Analysis ongoing
		
3/18/2020
		
TBC
		
Closed
		
Defect 61864: Deployed on 2nd October 2020
	
	

		
199
		
Closed
		
1109923
		
N/A
		
62186
62464
62541
		
N/A
		


		
Issues following confirmation of a site
		
Incorrect details are being associated to meter points in UK Link
		
62186: Following a class change from a 1 to 2, 3 or 4, the Daily Meter Service Provider (DMSP) service type is not being end dated in the system, following a re-confirmation / class change
62464: Following confirmation of a site, the outgoing Shipper nomination reference is being incorrectly populated within the Daily Data Logger Readings File (MDR)
62541: Confirmation requests for class 2 sites are being accepted even if the requested SOQ/SHQ ratio is not between 4 to 16. These requests should have been rejected with code DSO00012. 
 
		
Confirmation process
		
Shippers
		
Analysis ongoing
		
4/17/2020
		
Aug-20
		
Closed
		
Defect 62186: Deployed on 7th August 2020
Defect 62464: Deployed 6th November 2020
Defect 62541: Deployed on 7th August 2020
	
	

		
200
		
Closed
		
1115137
		
N/A
		
62431
62840
		
N/A
		


		
Issues with Network reports
		
Missing details from customer reports
		
62431: MPRNs missing from GSR Portal Report (MOD518) which was issued in January 2020
62840: Gas Safety Regulation (GSR) report is being issued to customers with the previous Shipper name rather than the latest, however it is displaying the correct short code.
		
Reporting
		
Networks
		
Analysis ongoing
		
5/20/2020
		
Sep-20
		
Closed
		
Defect 62186:  Deployed 7th August 2020
Defect 62840: Deployed 11th September 2020
	
	

		
201
		
Closed
		
1114415
		
N/A
		
62486
		
N/A
		


		
Issues with Shipper files
		


		
Weather variance Correction file (AWV and FWV) are not being rejected when the field length within the file is exceeded.
		
Shipper files
		
Shippers
		
Analysis ongoing
		
5/27/2020
		
8/7/2020
		
Closed
		
Defect 62486: Deployed 7th August 2020
	
	

		
202
		
Closed
		
1124577
		
N/A
		
62491
		
N/A
		


		
Issues with capacity invoice
		
Invoice charge types missing from invoice
		
The ECN charge type is not being displayed on the capacity invoice
		
Invoicing
		
Shippers
		
Analysis ongoing
		
5/28/2020
		
8/7/2020
		
Closed
		
Defect 62491: Deployed 7th August 2020
	
	

		
203
		
Closed
		
1063617
		
N/A
		
62774
		
N/A
		


		
Issues with submitting contacts in CMS
		
Customers are unable to raise consumption adjustments for SSMPs
		
Shippers are unable to log a Daily Metered Query (DMQ) Contact for Shared Supply Meter Points in CMS
		
CMS
		
Shippers
		
Analysis ongoing
		
6/18/2020
		
9/4/2020
		
Closed
		
Defect 62774: Deployed 3rd September 2020
	
	

		
205
		
Closed
		
1138250
		
P2
		
N/A
		
N/A
		


		
within-day auctions on Gemini not scheduled for Gas Day 5th June.
		
Shippers were unable to view and participate within auctions for the 5th and 6th hour bars.
		
A system account password had expired ahead of its scheduled expiry period preventing connectivity. The system password was reset to restore product connectivity. The fault was due to a known error within the current software, which has now been upgraded.
		
Gemini
		
All Customers
		
A system account password had expired ahead of its scheduled expiry period preventing connectivity.
		
6/4/2020
		
6/4/2020
		
Closed
		
Incident raised at 18:44, resolved at 20:49
	
	

		
206
		
Closed
		
1142287
		
P2
		
N/A
		
N/A
		


		
Connectivity to internet facing services was unavailable for 49 minutes.
		
Customers would have had issues submitting EU Nominations to Gemini. Checking portfolio information via DES and UK Link and logging fault tickets via Service Desk portal would also have been unavailable.
		
Access to Gemini, DES & service desk portal unavailable for customers.
		
Gemini
		
All Customers
		
A fault occurred on a suppliers internal network hardware device.
		
6/16/2020
		
6/16/2020
		
Closed
		
Incident raised at 00:30, resolved at 01:09
	
	

		
207
		
Closed
		
1144309
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with Gemini 
		
Users unable to log into Gemini
		
Gemini users were facing intermittent connectivity issues while accessing Gemini from 04:29 to 05:29. 
		
Gemini
		
All Customers
		
Our network supplier identified that traffic was intermittently being rerouted between primary and secondary connections.
		
6/22/2020
		
6/22/2020
		
Closed
		
Incident raised at 16:29, resolved at 17:29
	
	

		
208
		
Closed
		
1145360
		
P2
		
N/A
		
N/A
		


		
Issues with Gemini file flows
		
Gas flow and Invoicing charges would be impacted/inaccurate
		
Gemini file flow impacted due to Gemini B2B certificate renewal failure.
		
Gemini
		
All Customers
		
During an update to a security certificate a fault was encountered that meant connections could not be made to customer’s certificates.
		
6/25/2020
		
6/25/2020
		
Closed
		
Incident raised at 11:22, resolved at 14:26
	
	

		
209
		
Closed
		
1147359
		
P2
		
N/A
		
N/A
		


		
Delay in processing CNC and CNF files
		
Delay in customer receiving response files
		
New CNC, CNF file formats were not correctly processed by the system causing a delay processing times.
		
SPA - Confirmation process
		
Shippers
		
Old file formats were not flushed from the system when the new formats were applied.
		
6/28/2020
		
6/28/2020
		
Closed
		
Incident raised at 14:30, resolved at 18:30
	
	

		
210
		
Closed
		
1142812
1142824
		
N/A
		
62858
62859
62860
		
N/A
		
XCE1885
XCE1887
		
Issues with IGT Site Transfer Files (STN)
		
Files contain incorrect sequence of information
		
Defect 62858: Where there is a change to a Transporter, and a Shipper transfer is undertaken for an MPRN, the Transfer of Ownership file (TRF) issued to the incoming shipper does not contain the correct Transporter details. The Q44 record in the file is displaying the previousTransporter details.
Defect 62859: Following a Transporter takeover relating to multiple sites, the STN file generated does not associate the correct MPRNs under the U76 csep record. As a rsult, the MPRN to CSEP combination is incorrect in the STN file.
Defect 62860: Following an IGT site transfer for Greenfield sites, the Confirmation of Shipper Registration File (SSR) for first time confirmed sites are going to the previous IGT instead of the new IGT.  
		
IGT Transfer
		
All Customers
		
Incorrect system functionality & processing of files folloring an IGT change
		
6/26/2020
		
9/4/2020
		
Closed
		
Defect 62858: Deployed 4th September 2020
Defect 62859: Deployed 18th September 2020
Defect 62860: Deployed 4th September 2020
	
	

		
211
		
Closed
		
1150262
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with the Contact Management Service (CMS)
		
Customers unable to access CMS
		
CMS Services were unavaliable to customers due to Internet connectivity issues.
		
CMS
		
All Customers
		
TBC
		
7/3/2020
		


		
Closed
		
Incident raised at 15:32, resolved at 15:47
	
	

		
212
		
Closed
		
1154603
		
P2
		
N/A
		
N/A
		


		
Connectivity issue with the Contact Management Service (CMS)
		
Customers unable to access CMS
		
CMS Services were unavaliable to customers due to Internet connectivity issues.
		
CMS
		
All Customers
		
TBC
		
7/9/2020
		


		
Closed
		
Incident raised at 12:28, resolved at 12:42
	
	

		
213
		
Closed
		
1153333
		
P2
		
N/A
		
N/A
		


		
Blank screen following logon to Gemini
		
Customers unable to access or perform any operations in Gemini
		
When users logged into Gemini they were unable to perfom any operations as screen was blank.
		
Gemini
		
All Customers
		
TBC
		
7/6/2020
		


		
Closed
		
Incident raised at 18:05, resolved at 23:42
	
	

		
214
		
Closed
		
1156418
		
P2
		
N/A
		
N/A
		


		
Gemini application unavailable 
		
Customers unable to access or perform any operations in Gemini
		
Gemini application not available following maintenance activities
		
Gemini
		
All Customers
		
TBC
		
7/14/2020
		


		
Closed
		
Incident raised at 04:32, resolved at 11:00
	
	

		
215
		
Closed
		
1161421
		
P2
		
N/A
		
N/A
		


		
 Demand Attribution and line pack has not been published from 22nd July 21 Hour Bar.
		
Shippers would not be able to see the line pack details in Gemini system.
		
 Demand Attribution and line pack has not been published from 22nd July 21 Hour Bar.
		
Gemini
		
All Customers
		
TBC
		
7/22/2020
		


		
Closed
		
Incident raised at 21:51, resolved at 06:49
	
	

		
216
		
Open
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1891
XCE1898
XCE1940
XCE1955
		
Incorrect winter consumption calculation for a number of Meter Point Reference Numbers (MPRNS). 
		
Gas Allocations could be incorrect from 1st October  2022.
Supply Offtake Quantity (SOQ) values sent in the September .NRL (to be effective 1st October 2022) will potentially be incorrect.
Affected MPRNs could be placed into the incorrect EUC band
		
An issue was identified with a small number of Winter Consumption calculations whereby the value issued in the May release of the .NRL files (T50 record) is overstated. This is due to the calculation incorporating the energy generated by Meter Reads, and the reconciled energy following a check to check Site Visit read. 
		
AQ process 
		
Shippers
		
This was due to the sites transferring ownership over the winter period and the new Shipper not having access to the historical consumption data to derive a new value and submit a correction.
		
6/5/2020
		
Enduring fix implementation date
		
In Progress
		
For the affected MPRNs, impacted Shippers have been requested to raise a Winter Consumption correction (.AQI file using Reason Code 5) to apply or amend the proposed WC value. MPRN details which require Winter Consumption corrections was submitted via comms on 29th June 2022 (For Action XCE1955: Incorrect Winter Consumption Calculation).

Monitoring will continue annually until enduring fix is implemented.
	
	

		
217
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1886
XCE1897
		
Unresolved System Exceptions (MN09)
		
Reconciliations are being held
		
MN09 is raised following receipt of a Site Visit Read/Check Read for Class 4 meter points where the prevailing volume is zero.
		
Reconciliation
		
Shippers & Networks
		
Exception raised but unable to resolve and process reconciliations.
		
12/1/2019
		
Sep-20
		
Closed
		
1. For MN09 exceptions due to reconciliation unable to process the Check Read reconciliation where zero volume recorded; comme issued on 14th July & 28th July 2020 & discussed at DSG on 22nd June 2020 & 27th July 2020 providing resolution options for clearance of the backlog until the change is implemented.
2. Comms issued 28th July requesting customers to notify us if they object to the preferred option.
3. Comms to be issued 7th August providing next steps to customers.
4. Comms issued on 14th August providing next steps & plan. Adjustments to be issued during September and October. This will continue until enduring solution is implemented.
	
	

		
218
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1895
		
Updates issued are rejecting incorrectly: CON & BRO updates.
		
Updates not being applied in UKLink & not being issued to DNs & IGTs via daily portfolio update files
		
Following implementation of XRN 4850 an issue had been identified when the Customer Amendment file (CNC) was being sent to UKLink with both ‘CON’ and ‘BRO’ update sent within the same file and processed at the same time in UKLink. One of the records (BRO or CON) is accepted, and the other is rejected with reason code CTT00032 error
		
SPA - Supply Point Updates
		
Shippers & Networks
		
Incorrect functionality applied as part of the implementation of XRN 4850
		
7/7/2020
		
Jul-20
		
Closed
		
Code fix was successfully implemented on Saturday 4th July 2020. Any updates received from 4th July 2020 will be correctly processed
For all records that were incorrectly rejected from 27th June (implementation of the change) until the fix was implemented (3rd July as this is the last processing date prior to the fix being implemented), all affected MPRNs have been identified and issued to impated Shippers on 7th July 2020 requesting they re-submit the updates
	
	

		
219
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1893
		
Missing data within the Data Discovery Platform (DDP)
		
One third of portfolio data has not been loaded into Birst and is therefore unavailable for Shippers to view via DDP
		
One third of Shipper read performance data has not been loaded into DDP, this has materiality fell between a 1-5% positive or negative shift across all Shippers. April’s Read Performance figures for Class 3 MPRNs in DDP were impacted
		
Data Discovery Platform (DDP)
		
Shippers & Networks
		
On 15th May 2020, one of the jobs failed to run, which resulted in some data not loading Birst
		


		
16th June 2020
		
Closed
		
Successful implementation of the fix on 15th June, the data will be corrected in DDP and visible from 16th June 2020
	
	

		
220
		
Closed
		
1163278
		
P2
		
N/A
		
N/A
		


		
File not received in Gemini impacting EU nominations
		
EU nominations in Gemini for 23rd and 24th July impacted.
		
Files not received in Gemini impacting EU Nominations for 23rd & 24th July 2020
		
EU Nominations
		
TSO
		


		
7/23/2020
		
7/23/2020
		
Closed
		
Raised at 12:37, resolved at 16:35
	
	

		
221
		
Closed
		
1164038
		
P2
		
N/A
		
N/A
		
 
		
Demand Attribution and Auction process in Gemini is not published for 15 hr bar.
		
 Nominations will not be confirmed
		
Demand Attribution and Auctions is not published for 15th hour bar and will have financial impacts for the Shippers.
		
Gas Nominations
		
Shippers
		


		
7/24/2020
		
7/24/2020
		
Closed
		
Raised at 14:48, resolved at 18:26
	
	

		
222
		
Closed
		
1166416
		
P2
		
N/A
		
N/A
		


		
CMS unavailable for users
		
Unable to access CMS
		
EU Nominations and Prisma Auctions are delayed due to connectivity issue. Both internal and external users are unable to access screens. CMS application is not accessible for both internal or external users
		
CMS
		
All Customers
		


		
7/28/2020
		
7/28/2020
		
Closed
		
Raised at 12:30, resolved at 14:30
	
	

		
223
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1903
		
Reasonable Endeavour (REDs) invoice issued as a Debit insead of a Credit invoice to Shippers
		
Shippers have received debit invoice instead of a credit. DNs have received a credit invoice when it should be a debit.
		
Following implementation of Nexus in June 2017, the charge type (846) was amended to allow for a debit charge to be issued where the credit was issued in error, although this is rare this was to future proof the design of the system. Since Nexus go live and all valid claims since June 2017 have been issued incorrectly as debits instead of credits.
		
Theft of Gas
		
Shippers & Networks
		


		
7/30/2020
		
8/31/2020
		
Closed
		
Report will be issued notifying all impacted customers of the claims invoiced incorrectly. The reversal of the charges & credit invoices will be issued end of August 2020. Adjustments issued.
	
	

		
224
		
Closed
		
1172529
		
P2
		
N/A
		
N/A
		


		
 Demand Attribution and line pack has not been published for 14th August 2020 11 Hour Bar.
		
Shippers would not be able to see the line pack details in Gemini system.
		
 Demand Attribution and line pack has not been published from 14th August 2020 11 Hour Bar.
		
Gemini
		
All Customers
		
TBC
		
8/14/2020
		
8/14/2020
		
Closed
		
Incident raised at 11:29, resolved at 11:34
	
	

		
225
		
Closed
		
1175112
		
P2
		
N/A
		
N/A
		


		
CMS unavailable for users
		
Customers unable to access CMS
		
Slowness within CMS application which resulted in being unavailable for both internal and external users
		
CMS
		
All Customers
		


		
8/20/2020
		
8/20/2020
		
Closed
		
Incident raised at 11:55, resolved at 18:20
	
	

		
226
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1906
		
Early issue of Supporting Information Files (ASP) for the Amendment Invoice
		
The ASP file issued on the 24th August should not be processed as it has the wrong sequence numbers and may not be complete (due to the ASP mismatch file merge activities not being completed)
		
A manual error has resulted in the simulated Amendment invoice supporting information files (ASP) being issued earlier than scheduled, on the 24th August rather than the scheduled date of 26th August 2020.
		
Invoice - Amendment
		
Shippers
		


		
8/24/2020
		
8/26/2020
		
Closed
		
The ASP files from the UK Link Production system scheduled to be issued on 26th August 2020 will resolve the issue.
	
	

		
227
		
Closed
		
1177166
		
P2
		
N/A
		
N/A
		


		
IX - Connectivity Issue
		
Inbound and outbound files zare not being delivered via IX.
Shippers have been unable to access Gemini application via Citrix. However, they will be able to connect using XP1 token
		
EFT unable to connect to a number of sites and therefore unable to process any inbound and outbound files for affected sites. 
No access to Gemini
		
IX & Gemini
		
Shippers
		


		
8/25/2020
		
8/26/2020
		
Closed
		
Incident raised at 14:37, resolved at 01:01
	
	

		
228
		
Closed
		
1178023
		
P2
		
N/A
		
N/A
		


		
Gemini application issue
		
Nominations will not be carried out for TSOs
		
Gemini would not be able to send DELORD files to the TSOs until issue resolution 
		
Gemini
		
Shippers
		


		
8/26/2020
		
8/26/2020
		
Closed
		
Incident raised at 07:24, resolved at 10:11
	
	

		
229
		
Closed
		
1178895
		
P2
		
N/A
		
N/A
		
XCE1907
		
Performance issues with CMS
		
Limited connectivity to CMS for some customers
		
Users experiencing performance issues within CMS
		
CMS
		
All customers
		


		
8/28/2020
		
8/28/2020
		
Closed
		
Incident raised at 08:59, resolved at 09:20
	
	

		
230
		
Closed
		
1179270
		
P2
		
N/A
		
N/A
		


		
Gemini application unavailable via Citrix
		
Nomination and other activities cannot be carried out by shippers who does not have XP1 token
		
Gemini users are not able to access Gemini application through citrix
		
Gemini
		
Shipppers
		


		
8/29/2020
		
8/29/2020
		
Closed
		
Incident raised at 08:50, resolved at 15:25
	
	

		
231
		
Closed
		
1179970
		
P2
		
N/A
		
N/A
		


		
Gemini application issue
		
Nominations will not be carried out for TSOs
		
Gemini would not be able to send DELORD files to the TSOs until issue resolution 
		
Gemini
		
Shippers
		


		
9/1/2020
		
9/2/2020
		
Closed
		
Incident raised at 14:57, resolved at 00:42
	
	

		
232
		
Closed
		
1181315
		
P2
		
N/A
		
N/A
		


		
Files not issued to Gemini
		
EU nominations have not been confirmed
		
file flow for GNI and BBL is not affected. GNI and BBL have confirmed that have not observed any issues.
		
Gemini
		
Shippers
		


		
9/6/2020
		
9/6/2020
		
Closed
		
Incident raised at 00:05, resolved at 02:55
	
	

		
233
		
Closed
		
1182455
		
P2
		
N/A
		
N/A
		


		
Gemini application issue
		
Shippers & NG unable to access Gemini
		
EU Nominations would not be confirmed for the shippers.
		
Gemini
		
Shippers
		


		
9/6/2020
		
9/6/2020
		
Closed
		
Incident raised at 01:37, resolved at 03:30
	
	

		
234
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1911
		
Meter asset details sent prior to transfer of ownership notification files
		
Shippers received asset details prior to the transfer of ownership notification files
		
The Meter Reading Access Instruction Notification File: MRI issued on 10h September 2020 was sent before the Supply Meter Point Ownership Notification File (.TRF). 
		
Transfer of Ownership
		
Shippers
		
This occurred due to the a job being held in order to ensure all the TRF files were processed prior to the MRI job commencing (we see a larger volume of on a Thursday) When the request to hold the job was received, an error occurred where an adhoc instance was triggered, this was quickly identified and the job was held, unfortunately 9 TRF files were processed in this time
		
9/10/2020
		
9/10/2020
		
Closed
		
Communication sent on 11/09/20 to Shippers to advise
	
	

		
235
		
Closed
		
1184427
		
P2
		
N/A
		
N/A
		


		
Gemini application issue
		
A number of shippers were unable to access citrix to login into the Gemini application
		
Applications issues for Shippers due to connectivity issues 
		
Gemini
		
Shippers
		


		
9/15/2020
		
9/15/2020
		
Closed
		
 
	
	

		
236
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1912
		
Files incorrectly being rejected by system
		
Shippers were incorrectly receivng ‘File not eligible for the sender’ exception. 
		
four Shipper details were missing within the system. As a result, rejection files (.FRJ) were processed back to the Shippers when they should have been accepted.
		
SPA
		
Shippers
		
Post a change deployment on Wednesday 16th September, an issue was identified whereby a small number of files were failing with a ‘File not eligible for the sender’ exception. 
		
9/16/2020
		
9/17/2020
		
Closed
		
Reprocessed all affected files and response files on16th September 2020 and notified customers on 17/09/20
	
	

		
237
		
Closed
		
1186606
		
P2
		
N/A
		
N/A
		


		
Shippers able to see the menu options in Gemini which they should not be able view.
		
None
		
Screens available to Shippers, no sensitive data available via screens.
		
Gemini
		
Shippers
		


		
9/23/2020
		
9/23/2020
		
Closed
		
Incident raised at 16:21, resolved at 22:20
	
	

		
238
		
Closed
		
1188566
		
P2
		
N/A
		
N/A
		


		
Entry Capacity not published in Gemini
		
Shippers unable to view bid data.
		
Bid information not avaialble on Shippers primary screens
		
Gemini
		
Shippers
		


		
10/1/2020
		
10/1/2020
		
Closed
		
Incident raised at 07:05, resolved at 22:20
	
	

		
239
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1913
XCE1918
		
Conflicting data provided in NRL Files
		
In the NRL files for the month of September (Effective 1st October 2020), shippers would of received incorrect information relating to MPRNs. Therefore incorrect informstion was held in there system.
		
In a small number of instances two T04 records were provided for the same MPRN with conflicting information within the AQ Notification file.
		
AQ
		
Shippers
		


		
9/25/2020
		
9/25/2020
		
Closed
		
Customers were notified on 25th September 2020, 
	
	

		
240
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1914
		
Data discrepancy with Daily Delta Files
		
The Daily Delta files (EDL,EWS and IDL) that was sent to Networks between 20th and 24th September 2020 did not contain the correct PSR data for a number MPRNs.
		
Priority Services Register (PSR) data is not being recorded in UKLink and not being sent in the Daily delta files
		
SPA
		
Networks/ IGTs
		
The issue occurs where Customer Amendment file (CNC) and Broadcast Contacts (BRO) updates are received in the same request 
		
9/30/2020
		
9/30/2020
		
Closed
		
PSR updates were re-processed and sent in daily delta files on 2nd October 2020
	
	

		
241
		
Closed
		
1187159
		
N/A
		
63871
		
N/A
		
XCE1915
XCE1918
		
Incorrect data sent within the T97 record of the September 2020 AQ notification file (NRL)
		
Shippers have received incorrect data within the T97 record of the NRL files for the month of September (Effective 1st October 2020)

Customers have been notified that an MPRN is eligible for DN interruption and or priority consumer incorrectly.
		
The DNO_INT_TRESHOLD and PRIORITY_CONSUMER flag were populated incorrectly on T97 record in the .NRL file.
		
AQ process 
		
Shippers
		


		
9/30/2020
		


		
Closed
		
Customers were notified on 25th September 2020, Future AQ calculations will correct this position and customers will be notified of the correct Correction Factor requirements at that point.  
	
	

		
242
		
Open
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1917
XCE1947
		
Missing EUC values for 1st October 2020
Missing EUC values for 1st October 2021
		
For affected sites the incoming Shipper has not received the updated EUC values effective 1st October . 
		
The incoming Shipper has not been notified of the new End User Category (EUC) values for 1st October (in either of the AQ Notification files (.NRL) or Transfer of Ownership notification (.TRF file) where the Confirmation effective date is between the 25th and 30th September 2020 / 2021
		
Transfer of Ownership
		
Shippers
		


		
6/1/2017
		


		
In Progress
		
Change Request ‘XRN4978 – Notification of Rolling AQ value (following transfer of ownership between M-5 and M)’ has been raised to automate this process for the annual EUC Review. Monitoring will continue & customers notified monthly until fix is implemented.
	
	

		
243
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1918
		
Correction Factor Flag not populated in the AQ notification file
		
Customers were notified that an MPRN does not require a Correction Factor update, when an update is required.
		
The monthly AQ process notifys Shippers if an MPRN requires a Correction Factor to be applied where the revised AQ exceeds 732,000 kWh. For an number of sites the flag was not populated correctly in the October notification file.
		
AQ Notification
		
Shippers
		


		
10/8/2020
		
10/8/2020
		
Closed
		
Future AQ calculations will correct this position and customers will be notified of the correct Correction Factor requirements at that point.  
	
	

		
244
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1918
		
Application of End User Categories (EUC)
		
MPRNs will attract the wrong daily gas allocation profile and the wrong Peak Load Factor which calculates SOQ and therefore will have some slight incorrect capacity charges. 
		
4,946 MPRNs were incorretly allocated to EUC Band 02 and have been assigned to the wrong EUC within that Band with effect from 1 October 2020. This means the MPRNs will attract the wrong daily gas allocation profile and the wrong Peak Load Factor which calculates SOQ and therefore will have some slight incorrect capacity charges. 
		
AQ Notification
		
Shippers
		


		
10/8/2020
		
11/1/2020
		
Closed
		
 Correction will be applied with effect from 1st November 2020.  The corrected EUCs will be visible in the monthly AQ Notification files provided in October 2020. These sites will continue to see very small errors in their daily gas allocation, of a similar order to the impacts for October 1st.  Reconciliation will correct the energy position and UIG. Capacity charges for the October 2020 period will be corrected and invoiced separately in November 2020.  
	
	

		
245
		
Closed
		
INC0010673 
		
P2
		
N/A
		
N/A
		


		
Issue raising service desk tickets via telephone
		
Customers unable to log service desk ticket via telephone
		
Service Desk- Unable to reach Xoserve Service Desk number on options 1 and 3. 
		
Service Desk Plus
		
All Customers
		


		
10/12/2020
		
10/12/2020
		
Closed
		
Incident raised at 04:11, resolved at 07:15
	
	

		
246
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1920
		
Issue relating to Composite Weather Variable calculation
		

Annual Quantities (AQs) calculated in WM LDZ are using an inaccurate CWV (Issue 1 only)
		
The CWV calculation for West Midlands (WM) LDZ has used Solar Radiation observations from the wrong weather station. Following the recent changes to the CWV formula as part of this year’s Seasonal Normal Review, it was agreed that Coleshill weather station should be the source for Solar Radiation observations, unfortunately our WSP has, incorrectly, provided the observations from Birmingham Winterbourne (the source station for Temperature). Period impacted 1st May 2020 to 15th October 2020. NDM Allocation only impacted from 1st to 15th October 2020 which is when the CWV formula officially changed to include a Solar Radiation term.
		
AQ
		
All Customers
		


		
11/6/2020
		


		
In Progress
		


	
	

		
247
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1920
		
Issue relating to Composite Weather Variable calculation
		
Daily NDM Allocation and Gas Nominations have used an inaccurate CWV for Gas Days 1st October 2020 to 15th October 2020 for WM only (Issue 1) and Gas Days 24th October to 4th November 2020 for all LDZs (Issue 2)
		
All weather data provided to Xoserve since the recent clock change at the end of October has not been adjusted to reflect the move from British Summer Time (BST) to Greenwich Mean Time (GMT) meaning the CWVs calculated for all LDZs have been impacted. Period impacted 24th October 2020 to 4th November 2020.
		
AQ process 
		
All Customers
		


		
11/6/2020
		


		
Closed
		


	
	

		
248
		
Closed
		
INC0025037
		
P2
		
N/A
		
N/A
		
 
		
Demand Attribution and Auction process in Gemini is not published for 16 hr bar.
		
 Nominations will not be confirmed
		
Demand Attribution and Auctions is not published for 16th hour bar and will have financial impacts for the Shippers.
		
Gas Nominations
		
Shippers
		


		
11/22/2020
		
11/22/2020
		
Closed
		
Raised at 16:39, resolved at 16:58
	
	

		
249
		
Closed
		
INC0025823 
		
P2
		
N/A
		
N/A
		
 
		
Gemini application was unavailable for National Grid Control Room users
		
National Grid users were unable to access Gemini application
		
On 25th November at 01:50 NG Control Room were unable to access Gemini.
		
Gemini processes
		
National Grid
		


		
11/25/2020
		
11/25/2020
		
Closed
		
Incident raised at 01:50, resolved at 05:15
	
	

		
250
		
Closed
		
INC0027589 
		
P2
		
N/A
		
N/A
		
 
		
Demand Attribution and Auction process in Gemini is not published for 5 hr bar.
		
 Nominations will not be confirmed
		
Demand Attribution and Auctions is not published for 5th hour bar and will have financial impacts for the Shippers.
		
Gas Nominations
		
Shippers
		


		
11/30/2020
		
11/30/2020
		
Closed
		
Raised at 05:37, resolved at 06:12
	
	

		
251
		
Closed
		
 INC0034082
		
P2
		
N/A
		
N/A
		


		
Auctions have been published twice for gas day 14th Dec.  
		
Gas auctions will be published twice in Gemini
		
Multiple instances of the same jobs are being triggered. As a result, Auctions have been published twice for gas day 14th Dec.  
		
Auctions
		
Shippers/Traders
		
Xoserve support teams isolated the issue by disabling the AV software agent. The teams then worked with the GNCC to implement workarounds and data corrections. The system remained protected as scheduled AV scans  were still active. A permanent fix has been now been implemented.
		
12/14/2020
		
12/14/2020
		
Closed
		
Raised at 19:34, resolved at 21:15
	
	

		
252
		
Closed
		
INC0037343
		
P2
		
N/A
		
N/A
		


		
Demand Attribution and Auction process in Gemini is not published for 0 hr bar.
		
Shippers were not able to see the latest value of Demand Attribution. However, Contingency process was followed to publish the Demand Attribution.
		
Files not received for 0th hour bar for the gas day 23rd and 24th December resulting in Nominations not being updated.
		
Gas Nominations
		
Shippers
		
Xoserve teams contacted the GNCC to inform of the issue and requested contingency invocation. A major incident was logged with the NG service desk, our teams worked with NG incident management teams to receive the file. Demand was published successful for the 05:00 hour bar. Root cause analysis been requested from NG.
		
12/24/2020
		
12/24/2020
		
Closed
		
Raised at 00:37, resolved at 00:42
	
	

		
253
		
Closed
		
INC0039265
		
P2
		
N/A
		
N/A
		
 
		
Nominations were not processed for 31st December 2020 
		
 Nominations will not be confirmed
		
Nominations were not processed for 31st December 2020 
		
Gas Nominations
		
Shippers
		
Xoserve support teams restarted the B2B application service to release the file and confirmed that EU nominations had completed for all TSO’s & shippers from all TSO’s for the 08:00 hour bar. RCA is in progress.
		
12/31/2020
		
12/31/2020
		
Closed
		
Raised at 04:30, resolved at 08:06
	
	

		
254
		
Closed
		
 INC0040873
		
P2
		
N/A
		
N/A
		


		
Users are not able to access CMS Application. 
		
Users were unable to perform any operations in CMS
		
Due to performance issues users were unable to access CMS
		
CMS
		
All Customers
		


		
1/5/2021
		
1/5/2021
		
Closed
		
Raised at 11:58, resolved at 15:15
	
	

		
255
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1925
		
Meter Reading correctly rejected but with incorrect rejection reason code
		
The read will be correctly rejected, however it will be associated to the incorrect rejection reason code
		
Where a Convertor Serial Number is provided in a meter read file for an MPRN, however does not have a Convertor attached, the record will be rejected, as expected, but with the wrong rejection code (MRE00427: The converter corrected read has not been supplied where there is a converter fitted and the converter reads are usable). •	The correct rejection code which should be used is:  MRE00421 - A converter serial number has been supplied where no converter is fitted. 
		
Read process
		
Shippers
		


		
1/13/2021
		


		
Closed
		
Instances will be monitored & reviewed if any further action is required. As at 15/01/2020 no instances had occurred. 

No occurance of the instance as at September 2021
	
	

		
256
		
Closed
		
N/A
		
N/A
		
N/A
		
XRN5015
		
XCE1924
		
A read obtained as a result of a Must Read being used as the transfer read
		
The read obtained as a result of a Must Read will be used as; - The closing read for the outgoing Shipper, - The opening read for the incoming Shipper. The Shippers will be notified of the read as if the read was received from the incoming Shipper. As the read was not received from the Shipper, the ‘Meter Reading Source’ is recorded as ‘C’ which is not a valid value for the file, this may mean Shipper systems may reject the record.    
		
Where a Must Read is received within the transfer window (D to D+5 of the effective date) for both Shipper transfer and Class change, the read obtained as a result of the ‘Must Read’ is being incorrectly used as the transfer read. Normally process would be the incoming Shipper submitting an opening read, and in the case that the read has been rejected/ not submitted, Xoserve would estimate the transfer read on their behalf.
		
Read process
		
Shippers
		


		
1/13/2021
		


		
Closed
		
Instances will be monitored & reviewed if any further action is required. As at 15/01/2020 only 98 instances had occurred since June 2017. CSS implementation will resolve this issue. 
	
	

		
257
		
Closed
		
 INC0042904
		
N/A
		
N/A
		
N/A
		
N/A
		
Line Pack files not published for 18th hour bar
		
Line Pack values are used by the Shipper to place the nominations
		
Line Pack files received are out of sync, impacting Line Pack being published. Contingency process invoked by NG GNCC to publish Line Pack values. 
		
Gemini
		
Shippers
		


		
1/15/2021
		


		
Closed
		
Raised at 18:44, resolved at 20:20
	
	

		
258
		
Closed
		
 INC0021688
		
N/A
		
64332
		
N/A
		


		
Issues with AQ correction process validations
		
Incorrect AQ/FYAQ values being issued in multiple notification files to Shippers and Networks. 
		
64332- AQ Correction (AQI) requests are being incorrectly accepted when the request reason code 4 is used with a U01 segment and the read provided is not failing the Market Breaker Tolerance. The request should be rejected with AQI00009 (The Meter Reading supplied to support the AQ correction Request reason 4 is not out side the Meter Read tolerance). 
		
AQ - Corrections
		
Shippers
		


		
1/11/2021
		


		
Closed
		
Defect 64332: Deployed on 1st June 2021
	
	

		
259
		
Open
		
1167623
		
N/A
		
63688
64401
		
N/A
		


		
Unable to raise CMS adjustment contacts 
		
Customers being unable to raise any adjustments that may be Impacted by Line in the Sand.
		
63688: Request for Adjustment (RFA and CDQ) contacts are incorrectly getting rejected in CMS for Prime MPRNs when the unit of measurement of the meter/corrector does not match with the unit of measurement of the netoff device.
64401: Request for Adjustment contacts (RFA and CDQ) are being incorrectly rejected for Class 3 and for periods where the Class change took place the same day as a Shipper transfer
		
CMS
		
Shippers
		


		
9/28/2020
		


		
No resolution dates
		
Defect 63688: TBC
Defect 64401: Deployed on 15th September 2021
	
	

		
260
		
Open
		
INC0032565
		
N/A
		
64301
66215
		
N/A
		


		
Issue with IGT Portfolio Files: 
		
Incorrect data being held by the IGT: Incorrect Confirmation Effective date and reference number in portfolio file sent to IGTs daily (IDL)
		
64301- The incorrect confirmation number and confirmation effective date is being populated in the IGT portfolio files (IDL) following a Shipper transfer the day after an AQ roll update or an AQ correction goes Live.
66215- When a new meter is installed for a Meter point the B44 record is being incorrectly populated with a U (update) in the IDL file.
		
Portfolio Files
		
IGTs
		


		
1/7/2021
		


		
No resolution dates
		
Defect 64301: TBC
Defect 66215: Due to be deployed following CSS implementation
	
	

		
261
		
Closed
		
N/A
		
N/A
		
64300
		
N/A
		
XCE1928
		
Issue with GT Portfolio Files
		
Incorrect data being held by the GT:  Incorrect CSEP indicator value in EDL file: Incorrect CSEP indicator value in portfolio file sent to Networks daily (EDL)
		
Where the Outcode of a postcode falls within a GT and IGT Network, this this is notified via the CSEP INDICATOR value ‘P’ at MPRNs level within the EDL file. The CSEP INDICATOR field (B38 segment) in the daily delta file (EDL) has been incorrectly populated with the value P since go live of UKLink in June 2017, where the post code does not fit in this scenario the field should be populated with ‘N’ (not shared).
		
Portfolio Files
		
GT
		


		
1/7/2021
		


		
Closed
		
Defect 64300: Deployed on 25th June 2021
	
	

		
262
		
Open
		
INC0021236
		
N/A
		
64077
64334
		
N/A
		


		
Incorrect Data sent in Transfer of Ownership File
		
Shippers will receive incorrect data in transfer of ownership files
		
64077- The Transfer of Ownership file (TRF) file is being populated with the incorrect address details if there has been an address amendment which results in a change to the exit zone which is effective on D-1 or D date (GT site). 
64334- The incorrect Network Owner effective date for IGT MPRNs is being populated in the Transfer of Ownership file (TRF).
		
Transfer of Ownership
		
Shippers
		


		
11/25/2020
		
2/18/2022
		
In Progress
		
Defect 64077: Deployed on 28th May 2021
Defect 64334: Due to be deployed following CSS implementation
	
	

		
263
		
Closed
		
1183759
		
N/A
		
63900
		
N/A
		


		
Issues with Confirmation Process
		
Incorrect consumption and energy values being applied to incoming and outgoing shippers
		
63900- When a Supply Point Amendment file (SPC ) for a Class change and Confirmation file (CNF) are received at the same time and the new confirmation is going live after the Class change effective date of D-1, the class change is not being processed correctly and the system is incorrectly estimating a read (FICC) for the previous product Class.
		
Confirmation process
		
Shippers
		


		
11/30/2020
		


		
Closed
		
Defect 63900: Deployed on 2nd July 2021

	
	

		
264
		
Closed
		
INC0048889
		
N/A
		
64824
		
N/A
		


		
IGTs not receiving notification of a Referral
		
Referrals will take longer to be processed and delay the New Shipper to take ownership
		
The IGT parent for a CSEP which are part of a nested combination are not receiving a capacity referral notification for daily metered (DM) sites.
		
Referrals
		
IGTs
		


		
2/12/2021
		


		
Closed
		
Defect 64604: Deployed on 2nd July 2021

	
	

		
265
		
Closed
		
N/A
		
N/A
		
64107
		
N/A
		


		
Incorrect rejection used in Customers amendment process
		
Customer being unable to make valid amendments to there meter points
		
On receipt of a customer amendment (CNC) file with an S81 record for Prime and Sub sites are being incorrectly rejected with an invalid rejection code (CTT00035).
		
SPA
		
Shippers
		


		
12/1/2020
		


		
Closed
		
Defect 64107: Deployed 28th May 2021

	
	

		
266
		
Open
		
INC0042890
		
N/A
		
64731
64225
65732
65805
65807
65887
66365
66477
66584
66894
67220
67273
67281
67319
		
N/A
		


		
Processing of meter reads
		
Potentially affect reconciliation and submission of future reads
		
64731- Transfer reads are being created incorrectly as non-opening reads instead of opening & closing read for class 4 sites
64225- When a non-opening site visit (SFN) Read is received after D+10 for the Read date of D+3 Business Days, and the Read is lower than the estimated Read but higher than the last Site Visit Read, the Inner Tolerance value is getting incorrectly rejected.
65732 - Class change replacement read is not being processed within the system where a class change happens from a 3 to 4 and is the last read prior to a class change estimate read
65805 - Where a transfer replacement read  is submitted and is less than the RGMA exchange read on D+1 of transfer date,  this is incorrectly failing with a rejection for upper outer tolerance.
65807 -  When an actual read is uploaded through the UDR or DLC process across shipper transfer i.e. if the last actual read is before shipper transfer and then a new actual read is uploaded after the shipper transfer read a better estimate should be triggered as an opening read (O). However the system is incorrectly creating these as a cyclic read (N).
65887 - Reads are failing tolerance validation when a read is loaded through UBR or UDR process where next actual read is RGMA read (FINX/FINC) with non-zero TTZ.
66365 - Meter point read details are reflecting incorrectly in UK Link where both streams have the same corrector serial number
66477 - An exception is being incorrectly generated (MR02) for missing volume or energy profile during the reconciliation process for class 3 sites, when an RGMA device exchange is performed on D-1 followed by RGMA exchange on D date.
66584 - For Class 4 sites, an exception is being incorrectly generated (MR15) during the reconciliation process of class change replacement read where class change happened from class 3 to class 4 and next read exists in class 4 period which is already reconciled
66894 - For DM sites, where two actual reads are loaded, and better estimate reads are generated inbetween these two reads, the TTZ count is not being considered when the reads have gone round the clock
67220 - Replacement read received on D (device activity date) date is not being rejected for class 3 sites where RGMA read is already uploaded
67273 - When a cyclic read is loaded within the Shipper transfer window for a class 4 site, with a corrector nistalled, and the transfer window is still open, the Opening Transfer Read (OPNT) is being loaded with a blank uncorrected read and incorrect number of digits on the meter read
67281 - For Class 4 sites, where a cyclic read with reason 'N' is being l0oaded through the UMR process within the transfer window (D + 6 to D+10) where the read type is blank, the read type is being incorrectly populated within UK Link
67319 - When a Site Visit read is inserted between 2 actual reads for DM sites, the Site Visit read is not being populated in UK Link
67828 - When MOD700 reads for multiple MPRNs are being processsed in bulk, the latest read in a batch of 
reads should be considered for read validations, however the system is using the oldest read in the file
		
Read process
		
Shippers / Networks
		


		
2/19/2021
		


		
In Progress
		
Defect 64731: TBC
Defect 64225: TBC
Defect 65732: Deployed on 15th September 2021
Defect 65805: Deployed on 25th September 2021
Defect 65807: Deployed on 19th November 2021
Defect 65887: Deployed on 25th September 2021
Defect 66365: TBC
Defect 66477: Deployed on 10th June 2022
Defect 66584: Due to be deployed following CSS implementation
Defect 67220: TBC
Defect 67273: TBC
Defect 67319: TBC
Defect 67828: Due to be deployed following CSS implementation
	
	

		
267
		
Closed
		
INC0054228
		
P2
		
N/A
		
N/A
		


		
Users unable to log into Gemini
		
Customers unable to access or perform any operations in Gemini
		
Users unable to access Gemini impacting Gas Nominations, UIG Nominations, demand estimation & Capacity Auctions.
		
Gemini
		
All customers
		


		
3/10/2021
		
3/10/2021
		
Closed
		


	
	

		
268
		
Closed
		
INC0054612
		
P2
		
N/A
		
N/A
		


		
Portal Services performance issues
		
Users were unable to perform searches in Data enquiry at MPRN level
		
Some Users experiencing performance issues with Portal & DES

		
Portal
		
All customers
		


		
3/11/2021
		
3/11/2021
		
Closed
		


	
	

		
269
		
Closed
		
INC0057450 
		
P2
		
N/A
		
N/A
		


		
UIG Nominations were incorrectly published for 10AM and 11AM  
		
UIG nominations for 28th and 29th March were incorrect. Therefore incorrect buying information being provided to Shippers
		
UIG nominations for 28th and 29th March were incorrect.
		
Gemini
		
Shippers
		


		
3/28/2021
		
3/28/2021
		
Closed
		


	
	

		
270
		
Closed
		
INC0057457
		
P2
		
N/A
		
N/A
		
XCE1935
		
Processing inbound and outbound files was severely constrained
		
Delay in processing files and in some cases files were not processed.
		
On 27th March 2021, following the final stages of the UK Link Upgrade Project to upgrade all SAP application components, performance of processing of both inbond & outbound files began to deteriorate. 
		
UK Link
		
All Customers
		
Product bug within the SAP NetWeaver 7.5 application that was previously unknown to SAP. This required SAP to develop a patch, which addressed the root cause of the issue we encountered and has stabilised UK Link.
		
3/27/2021
		
4/23/2021
		
Closed
		
Although the P2 incident was resolved, communications continue with customers to resolve the missing and duplicate files.
	
	

		
271
		
Closed
		
INC0060921
		
P2
		
N/A
		
N/A
		


		
Line Pack files not published for 10th hour bar
		
Line Pack values are used by the Shipper to place the nominations
		
Line Pack files received were incorrect for 10am on 14th April 2021
		
Gemini
		
Shippers
		


		
4/14/2021
		
4/14/2021
		
Closed
		


	
	

		
272
		
Closed
		
INC0079940
		
P2
		
N/A
		
N/A
		
XCE1938
		
Overnight IX Connectivity Issue
		
Customers were unable to process a small proportion of outbound and inbound files. This led to Gemini access issues for a small number of customers
		
Technical issue affecting the connectivity between the IX industry gateway and the Xoserve Electronic File Transfer (EFT) application. This issue specifically impacted 20 individual IX servers that handle IX file flow traffic for a number of our customers. 
		
IX & Gemini
		
Shippers &
User Agents
		
More detailed root cause analysis will be completed in due course, however at this stage we have identified that the fault occurred as a result of an approved change to decommission network ports, cabling and routers at the Xoserve Peterborough and Kettering data centres, undertaken by our third party network provider
		
6/8/2021
		
6/8/2021
		
Closed
		
At 09:05 on 8th June, we successfully deployed a fix to restore service levels and all files impacted (both inbound and outbound), were successfully processed to and from UK Link. All impacted customers, including those who highlighted Gemini access issues, were contacted directly.
	
	

		
273
		
Closed
		
N/A
		
N/A
		
63762
		
N/A
		
XCE1939
XCE1941
		
Data Issue with Gas Safety Regulation Report
		
Distribution Networks may have not been notified (via the GSR report) of an isolation at a Supply Meter Point, if it was created for a historic date, which may have resulted in a Gas Safety check not being undertaken. 
		
 
DNs are able to run the Gas Safety Regulation (GSR) report via the UKLink Portal. The report returns MPRNs where an isolation has been effective in UKLink between the dates input, for the selected LDZ. Shippers can retrospectively update the isolation effective date for an MPRN. If this action took place after a DN has run the GSR report for a given period, these MPRNs will have been excluded.
		
GSR Process
		
Shippers & DNs
		
The report specification did not include logic to return Meter Points that had subsequently received a retrospective update to the isolation effective date. 
		
10/12/2020
		
1/8/2021
		
Closed
		
Communications & data issued to DNs 30th June and 16th July 2021
Communication sent to Shippers on 29th June 2021 
	
	

		
274
		
Open
		
INC0023545
		
N/A
		
64170
		
N/A
		
N/A
		
Meter points associated to incorrect DN portfolio
		
Incorrect Distribution Network is being associated to meter points
		
Incorrect Distribution Network (DNO) is being associated to an MPRN, following a back-dated meter installation, with an effective date prior to a recent LDZ change 
		
RGMA
		
Shippers & DNs
		


		
12/11/2020
		
TBC
		
No resolution dates
		
Defect 64170: TBC
	
	

		
275
		
Open
		
INC0042700
		
N/A
		
64729
		
N/A
		
N/A
		
RGMA transactions being incorrectly accepted for DM sites
		


		
For Daily Metered sites, RGMA activities are being incorrectly accepted in the system where a Shipper transfer read has been fulfilled for the same date
		
DM Sites
		
Shippers
		


		
2/19/2021
		
TBC
		
No resolution dates
		
Defect 64729: TBC
	
	

		
276
		
Open
		
INC0048612
		
N/A
		
64825
		
N/A
		
N/A
		
Incorrect rejections for meter installations relating to MOD 424
		
Shippers are unable to update device information in the system
		
The system is incorrectly rejecting meter installations, (for MOD 424) where the read provided in the file is the same as the read for the previous device 
		
RGMA
		
Shippers
		


		
3/4/2021
		
TBC
		
No resolution dates
		
Defect 64825: TBC
	
	

		
277
		
Open
		
INC0055850
		
N/A
		
65322
		
N/A
		
N/A
		
Issue with Ratchet notification files (PRN and RAT)
		
Customers will be receiving files not related to MPRNs in there portfolio
		
The Ratchet Notification File (RAT) and Periodic Portfolio Notification File (PRN) files have incorrectly been sent to some shippers when a ratchet has been processed in bulk, even though there is no shipper confirmation in progress .
		
SPA
		
Shippers
		


		
5/20/2021
		
2/18/2022
		
In progress
		
Defect 65322: Due to be deployed following CSS implementation
	
	

		
278
		
Open
		
N/A
		
N/A
		
65395
		
N/A
		
N/A
		
Incorrect Supplier details being sent within Daily Delta Files
		
IGTs / DNs will hold incorrect Supplier details within their system
		
When the incumbent Shipper is updating their Supplier details, and is effective on the same day as a Shipper transfer, the incorrect Supplier details is being sent within the Daily Delta Files (IDL / EDL)
		
SPA
		
IGTs & DNs
		


		
6/10/2021
		
TBC
		
No resolution dates
		
Defect 65395: TBC
	
	

		
279
		
Open
		
INC0063440
		
N/A
		
65576
		
N/A
		
N/A
		
Incorrect rejection of RGMA update
		
Customers are unable to update the BYPAS indicator in UK Link
		
When a Shipper submits an RGMA ONUPD, exchanging the meter details (which includes a BYPAS activity update) is being incorrectly rejected in UK Link
		
RGMA
		
Shippers
		


		
7/8/2021
		
TBC
		
No resolution dates
		
Defect 65576: TBC
	
	

		
280
		
Open
		
N/A
		
N/A
		
65657
67437
67438
		
N/A
		
N/A
		
Shippers unable to cancel AQ correction request
		
AQ Tolerance will be incorrectly updated and Shippers will be unable to change the AQ for the following 9 months
		
65657 - If a Shipper submits an AQ Correction File (.AQI) with reason code 4 (Tolerance Change) - however tries to cancel the correction at a later date, the system is not allowing the cancellation to happen when it should
67437 - AQ Corrections are being incorrectly accepted where the read date is older than 6 months.
67438 - An AQ correction request along with U01 for request reason 4 is received for a class 4 site is being incorrectly rejected
		
AQ Correction
		
Shippers
		


		
7/19/2021
		
TBC
		
No resolution dates
		
Defect 65657: TBC
Defect 67437: TBC
	
	

		
281
		
Closed
		
N/A
		
N/A
		
65659
		
N/A
		
N/A
		
Estimated class change reads incorrectly used for tolerance validation
		
This will impact calculation of volume and energy
		
Class change estimate is being incorrectly considered for tolerance validation for forward volume, when a cyclic read is inserted before the class change date for non daily metered (NDM) site
		
Reads
		
Shippers
		


		
7/19/2021
		
TBC
		
Closed
		
Defect 65659: Deployed 3rd September 2021
	
	

		
283
		
Open
		
INC0081204
		
N/A
		
65741
66313
		
N/A
		
N/A
		
Missing information from Response File
		
Customers will not receive all information within their response files
		
65741: S75 segment (meter point details) are not being populated in the Nomination Response File (.NMR) for twin stream / brownfield sites
66313: Site component SOQ field within the U71 record (NTS Optional Rate) is not being populated for IGT sites
		
SPA
		
Shippers
		


		
8/3/2021
		
TBC
		
No resolution dates
		
Defect 65741: TBC
Defect 66313: TBC
	
	

		
284
		
Closed
		
INC0096954
		
P2
		
N/A
		
N/A
		
XCE1943
		
Performance Issues with UK Link
		
Inbound and outbound files were temporarily suspended. These were processed once normal service was restored, therefore no impact to customers
		
Customers were experiencing performance issues with file transfers within UK Link, which resulted in all inbound and outbound files being temporarily suspended
		
UK Link
		
All customers
		


		
8/23/2021
		
8/23/2021
		
Closed
		
23rd August 2021
	
	

		
284
		
Open
		
INC0088238
		
N/A
		
65806
		
N/A
		
N/A
		
Missing Contact Details
		
Customers will not be able to retrieve data that is being submitted
		
When the Contact Electronic address field is being populated in the S67 (Electronic Device) Record when accompanying an S38 (LSP Confirmation), the data is not being saved in UK-Link.
		
Confirmation process
		
All Customers
		


		
8/8/2021
		
TBC
		
No resolution dates
		
Defect 65806: TBC
	
	

		
285
		
Closed
		
INC0097826
		
P2
		
N/A
		
N/A
		
N/A
		
Access issues to Gemini application
		
NTS Exit Capacity Auction for 1:00am and 2:00am were not published, and therefore Shippers were unable to submit bids
		
National Grid control room users were unable to log in to Gemini
		
Gemini
		
National Grid
		


		
8/28/2021
		
8/28/2021
		
Closed
		
28th August 2021
	
	

		
285
		
Open
		
N/A
		
N/A
		
66070
		
N/A
		
N/A
		
Class 1 site incorrectly Confirmed
		
Sites may be errouneously confirmed and charges maybe incorrect.
		
Seasonal Large Supply Point are being incorrectly Confirmed as Class 4 during the SLSP contract period.
		
Confirmation process
		
Shippers
		
TBC
		
9/10/2021
		
TBC
		
No resolution dates
		
Defect 66070: TBC
	
	

		
286
		
Closed
		
INC0098568
		
P2
		
N/A
		
N/A
		
N/A
		
Exit Capacity Auction unable to be processed
		
TBC
		
National Grid were unable to process the Exit Capacity Auction bids from 9 Shippers, for 27th August Gas Day
		
Gemini
		
National Grid & Shippers
		


		
8/28/2021
		
8/28/2021
		
Closed
		
28th August 2021
	
	

		
286
		
Closed
		
INC0093852
		
N/A
		
66217
		
N/A
		
N/A
		
Incorrect Correction Factor being used.
		
Consumption and Charges will be incorrecly calculated.
		
For sites with a Meter and a Corrector the Meter Correction factor is being incorrectly used.
		
RGMA
		
Shippers
		


		
9/27/2021
		
TBC
		
Closed
		
Defect 66217: Deployed on 24th January 2022
	
	

		
287
		
Closed
		
INC0098801
		
P2
		
N/A
		
N/A
		
N/A
		
Database error within Gemini
		
Users were experiencing performance issues within the system
		
Users were experiencing performance issues with Gemini and Gemini exit screens
		
Gemini
		
All users
		


		
8/29/2021
		
8/29/2021
		
Closed
		
29th August 2021
	
	

		
288
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1936
		
Delayed submission of the LDZ Capacity and LDZ Commodity Invoice Supporting Information Files
		
Customers did not have received the .CZI Supporting Information file on the scheduled date of Friday 14th May 2021
		
The LDZ Capacity Invoice Supporting Information File (.CZI) was due to be issued on Friday 14th May. Due to a technical issue, these files were delayed.
		
Invoicing
		
Shippers & Networks
		


		
5/20/2021
		
5/20/2021
		
Closed
		
Communciation issued to Shippers & Networks on 20/05/21 and all files were delivered to customers.
	
	

		
289
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1942
		
Performance issues with Data Discovery Platform (DDP)
		
Customers were unable to use DDP features once logged in to the platform.
		
Global issue encountered with our platform vendor, which resulted in customers being unable to use the features od the Data Discovery Platform (DDP) within the system once logged in
		
DDP
		
All customers
		


		
7/21/2021
		
7/21/2021
		
Closed
		


	
	

		
290
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1944
		
Significant LDZ Input Measurement Errors (EM and SE)
		
This means that the total energy recorded as being delivered into the LDZ is incorrect for the period.
•The way that daily gas allocation works means that Unidentified Gas (UIG) is incorrect in the affected LDZ (too low if the meter under-recorded and too high if the meter over-recorded).

•When the error is corrected this will mean that there will be charges or credits to all Gas Shippers with a live meter point portfolio in the affected LDZs during the affected period (see above for dates) depending on the direction of the error. 

Corrections are processed on the Amendment Invoice as Unidentified Gas Reconciliations, using the latest reconciled throughput the affected period and the relevant (i.e. historic) UIG Weighting Factors for the affected period.
•	Under-recording meter = additional UIG charges
•	Over-recording meter = UIG credits
		
Distribution Network Operators (DNOs) have notified Joint Office that the offtake meters into two LDZs have been mis-recording as follows:

•EM (East Midlands LDZ) – Alrewas Offtake under-recorded from 23/05/2019 to 23/02/2021 due to the orifice plate being inserted incorrectly (Cadent Gas)

•SE (South East LDZ) – Isle of Grain main input meter over-recorded from 19/06/18 to 12/02/19 due to issues with the temperature transmitter (Southern Gas Networks)
		
Invoicing
		
Shippers
		


		
9/1/2021
		
9/6/2021
		
Closed
		
Communication sent to impacted Shippers and data sent by 06/09/2021
	
	

		
291
		
Closed
		
INC0104260
		
N/A
		
N/A
		
N/A
		
XCE1945
		
Issue accessing Discovery APIs
		
Customers will be unable to access or call the Xoserve Discovery API to obtain information.
		
Microsoft Azure Platform that hosts Xoserve’s Discovery APIs is currently unavailable meaning no calls can be made successfully to the APIs
		
DDP
		
Shippers
Suppliers
MAPs
Domestic and Non-Domestic PCWs and TPIs
		


		
9/30/2021
		
9/30/2021
		
Closed
		
Service restored on 30/09/2021
	
	

		
292
		
Closed
		
INC0103838
		
N/A
		
N/A
		
N/A
		
XCE1946
		
Issue with Confirmation Validations
		
Shipper Confirmations had a reduced objection period and Confirmation effective period
		
Following the enabling of code to cater to the requirements of MOD728B (‘Enabling NTS sites to register for NTS Optional Capacity discount on an annual eligibility basis’), it was identified that certain validations pertaining to the confirmation effective date notice period had been disabled.
		
Confirmation process
		
Shippers
		
MOD728B
		
10/4/2021
		
10/10/2021
		
Closed
		
Identified the MPRNs (Incoming and Outgoing) impacted by this issue and sent to customers via email.
For switches that had not already taken effect, we contacted the impacted outgoing shipper to ensure they were aware of the reduced objection deadline, to seek their instruction.
	
	

		
293
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1948
		
Amendment Invoice - K91 EUC Error
		
This resulted in incorrect End User Categories (EUCs) being presented in the July 2021 and August 2021 Amendment Invoice – issued in August & September 2021 respectively.

The UIG Smear itself was not impacted and the UGR (Unidentified Gas Reconciliation) charges within the invoice and the supporting data are correct.
		
Incorrect EUC references have been included in the K91 record of the ASP File (supporting data for the UIG Smear within the Amendment Invoice). Shippers will have received references in the record under which they do not have any sites.This is a presentation only issue and is a result of the implementation of XRN5253 June 21 Major Release, which affected the supporting information mapping pulling in incorrect EUC references.
		
Invoicing
		
Shippers
		


		
11/8/2021
		
11/8/2021
		
Closed
		
We have implemented a fix to ensure the mapping is now correct and the EUC references within the September 2021 Amendment (issued 26/10/21) were correct 
	
	

		
294
		
Closed
		
INC0114211
		
N/A
		
N/A
		
N/A
		
XCE1949
		
Data refresh Issue with Discovery APIs
		
The data customers access from the Xoserve Discovery API was outdated and as at 20th November 2021
		
All Discovery APIs were providing data as at 20th November 2021.
		
APIs
		
Shippers, Suppliers, MAPs, Domestic and Non-Domestic PCWs and TPIs
		
Recent Change activities to the Data Platform by SAP has been identified as the root cause of the issue
		
11/23/2021
		
11/26/2021
		
Closed
		
Issue resolved and the data held for the Discovery APIs is now up to date. Confirmation sent to customers on 26th November 2021
	
	

		
295
		
Closed
		
N/A
		
N/A
		
N/A
		
N/A
		
XCE1950
		
Commodity Invoice Issue
		
A number of Shippers will have incorrect charges on their October 2021 Commodity invoice. Adjustments will be processed to correct the financial position for all impacted customers. The adjustments will be processed as Request To Bill (RTB) invoices and issued on a .INR file. 
All invoices will have supporting information in an MS Excel spreadsheet issued via email on the same day that the RTB invoices are issued.   
		
A manual error has resulted in incorrect charges being issued on the October 2021 Commodity Invoice
		
Invoicing
		
Shippers
		
Manual error. A review of the process has been completed and additional controls are now in place to ensure the manual error that occurred on the October 2021 invoice will not occur again. 
		
12/6/2021
		
12/8/2021
		
Closed
		
Impacted customers were contacted on 8th December 2021, to advise on the materiality of the adjustments and the proposed dates for the adjustment invoices being processed.
	
	

		
296
		
Closed
		
INC0122402
		
P2
		
N/A
		
N/A
		
N/A
		
CMS Application unavailable for customers
		
All customers were unable to access the system, including those who were already using the service
		
On 15th December at 10:26 the CMS Portal became unavailable for all customers, however the service was restored at 11:03
		
CMS
		
All customers
		
The server which hosts the CMS service failed, which resulted in the services being moved to another host. 
Services were manually restarted on the new host to restore service.
		
12/15/2021
		
12/15/2021
		
Closed
		


	
	

		
297
		
Closed
		
INC0133807
		
P2
		
N/A
		
N/A
		
XCE1951
		
API Services Data Refresh Issue
		
Disruption of some shipper and supplier registration processes, as well as customer service query handling times and meter point validation activities.
		
On 17th January an issue with the scheduled data load process for our API service. This led to the omission of some meter points meaning that some searches return a null response.

There was also an issue with system performance during this time
		
APIs
		
Shippers, Suppliers, MAPs, Domestic and Non-Domestic PCWs and TPIs
		


		
1/17/2022
		
1/17/2022
		
Closed
		


	
	

		
286
		
Open
		
N/A
		
N/A
		
66893
67732
67763
67764
67830
		
N/A
		
N/A
		
Missing data from Distribution Network file
		
Network is not being informed of the latest data
		
67732 - When a meter instruction update is received in the .MAI file (Meter Access Instructions), it is being updated in UK Link however is not being issued in the EWS portfolio file
67763 - When there is a request to update the last visit date received in the .MID file (Meter Inspection Date Notice), it is being updated in UK Link but the details are not being issued in the EWS portfolio file
67764 - When a Gas act owner update is received in MAM file (Meter Asset Manager), it is being updated in the system but not being issued in the EWS portfolio file. 
67830 - When a meter is removed in UK Link, there is missing meter details within the EWS file .The update is being shown correctly in the system however is not being issued in the EWS portfolio file
		
Portfolio Files
		
DN's
		
TBC
		
12/14/2021
		
TBC
		
No resolution dates
		
Defect 66893: TBC
Defect 67732: TBC
Defect 67830: TBC
	
	

		
287
		
Open
		
N/A
		
N/A
		
67150
		
N/A
		
N/A
		
Missing data from SSMP Files
		
Customers will not receive all information within their files
		
The W03 new LMN segment within the Gemini Work Item file (GWI) is not being populated with the new shipper details following a Class 1 Shared Supply Meter Point confirmation
		
Unique Sites
		
Shippers
		
TBC
		
1/11/2022
		
TBC
		
No resolution dates
		
Defect 67150: TBC
	
	

		
288
		
Open
		


		
N/A
		
N/A
		
N/A
		
N/A
		
UK Link data discrepancy with Discovery API
		
Customers are unable to retrieve the most up to date information from the Big Data Platform for a small number of meter points (<0.1%)
		
For a very small number of meter points (<0.1%), some data items were not being refreshed in line with changes being made in UK Link.
		
Discovery APIs
		
All customers
		
TBC
		
2/7/2022
		
TBC
		
In progress
		
We implemented a fix to the data-loading routines on 3 February. Since then, all changes that occur in UK Link are being reflected in the API services.
We have implemented a data fix to the Service Provider History table, however 0.02% of the API data has not been refreshed in line with UK Link. The team are currently working on this and hope to have a fix in place as soon as possible.
	
	

		
289
		
Open
		
INC0102985
		
N/A
		
67998
68002
		
N/A
		
N/A
		
Incorrect SOQ value 
		
Customers will receive incorrect charges on their invoices
		
Defect 67998: For greenfield sites, when there is a future SOQ value for AQ review, the SOQ value is being incorrectly used for the back billing period (when the value should be the same as the confirmation effective date)
Defect 68002: For non-daily metered sites, when there is a class change from 3 to 4 or vice versa, the rolling SOQ value is being incorrectly calculated and sent in the SCR file, however this value should be taken from UK Link
		
SPA
		
Shippers & Networks
		
TBC
		
5/26/2022
		
TBC
		
No resolution dates
		
Defect 67998: TBC
Defect 68002: TBC
	
	

		
290
		
Open
		
N/A
		
N/A
		
67999
		
N/A
		
N/A
		
Incorrect charge rates for CSEP sites
		
Customers will receive incorrect charges on their invoices
		
The rates which are being issued in the Supply Point Change Response File (SCR) and Confirmation Response File (CFR) for LDZ IGT sites are not considering the CSEP’s SOQ and AQ values, instead it considers the MPRNs AQ and offered SOQ.
		
SPA
		
IGTs
		
TBC
		
5/26/2022
		
TBC
		
No resolution dates
		
Defect 67999: TBC
	
	

		
291
		
Open
		
INC0143365
		
N/A
		
68001
		
N/A
		
N/A
		
Alternate telephone numbers not being removed from Daily Cleansing Job
		
Outdated information is being incorrectly retained within the system
		
On receipt of a Customer Amendment (CNC) file, the daily cleansing job is not correctly removing the alternate contact telephone number
		
SPA
		
Shippers & Networks
		
TBC
		
5/26/2022
		
TBC
		
No resolution dates
		
Defect 68001: TBC
	
	

		
292
		
Open
		
INC0137255
		
N/A
		
68003
		
N/A
		
N/A
		
Incorrect LDZ customer charge rates 
		
Customers will receive incorrect charges on their invoices
		
Incorrect LDZ customer charge rates are being populated within the S03 segment (MRF and batch frequency change) following a Meter Read Frequency update (MRF). The rate is being derived based on the rolling AQ when it should be derived fron the Formula Year AQ. This affects sites with an AQ between 73,200 and 732,000 kWh
		
Invoicing
		
Shippers
		
TBC
		
5/26/2022
		
TBC
		
No resolution dates
		
Defect 68003: TBC
	
	

		
293
		
Open
		
N/A
		
N/A
		
68017
		
N/A
		
N/A
		
Data issues within UK Link
		
Data Enquiry may not show updated reads
		
For Class 4 Prime sites which have an Automatic Meter Reading device installed, the check to check period is not being correctly stored in UK Link
		
RGMA
		
Shippers
		
TBC
		
5/28/2022
		
TBC
		
No resolution dates
		
Defect 68017: TBC
	
	

		
294
		
Open
		
INC0208866
		
N/A
		
68097
		
N/A
		
N/A
		
Nomination offers not being correctly cancelled after 180 day offer period
		
Customers may receive incorrect updates for MPRNs where an offer has lapsed on their NRL files
		
A number of nomination offers are not being cancelled after 180 day offer period has lapsed from the offer creation date
		
Nomination / confirmation process
		
Shippers
		
TBC
		
6/17/2022
		
TBC
		
No resolution dates
		
Defect 68097: TBC
	



Sheet 2: Open AQ Issues

	
	
	
	
	
	
	
	
	
	
	
	
	

		
Defect / CR No.
		
Status 
		
Date Defect Raised 
		
Issue Description 
		
Customer Impact 
		
Defect Profiled 
		
Communication Reference No. 
		
Total of affected MPRNs (industry) 
		
Expected Date for Enduring Fix  
		
Date for revised AQ Effective Date 
		
RAG for meeting fix dates 
		
Status Explanation 
		
Linked Ticket Reference Numbers 
	
	

		
XRN4740
		
Closed 
		


		
For Class 4 sites with AMR fitted the AQ value calculated is incorrect, as both cyclic and sites visit reads are classed as valid reads. XRN4740 has changed the AQ calculation logic to identify energy between each cyclic read as well as the energy calculated between the Check to Check.   Where  any cyclical reads energy is identified,  between two Check to Check reads, then only the energy for the Check to Check will be used for the AQ calculation
		
Medium
		
Yes 
		


		
2745
		
Deployed on 16/02/2019
		
11/1/2019
		
Complete
		


		
979017, A174, A200, A203, 993736 
	
	

		
N/A
		
Open 
		
N/A
		
For Class 3 Meter Points, where a meter read is dated between the 5th and the 10th and is accepted within the read submission period, energy has not been calculated for those days, due to the energy factors not being received from Gemini. 
As the energy is not being calculated for this period of time, this is resulting in the Rolling AQ calculation not using the energy for these days and therefore being understated. 
		
Medium 
		
No 
		
XCE1884
		
TBC 
		
N/A 
		
N/A 
		
On target
		
Resolution options discussed at DSG on 23/03/20
This has been included as a process/design improvement as part of the AQ Taskforce 
		


	
	

		
62381
		
Open 
		
5/13/2020
		
When providing a convertor update with a volume correction factor update, without a meter report read (via ONUPD file), a system exception is being incorrectly raised (RU07)
		
High 
		
Yes 
		
N/A 
		
 5 
		
TBC 
		
TBC
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
63682
		
Open 
		
9/25/2020
		
If a Shipper loads a class change, shipper transfer, Site Fault Notification Read (SFN), Unbundled Meter or CYCL read, followed by an RGMA exchange or removal on D+1, the volume and energy are being incorrectly calculated
  
		
Medium 
		
Yes 
		
N/A 
		
 93 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway  
		


	
	

		
64026
		
Open 
		
11/20/2020
		
The Class change on the Twin Stream Site is creating an FICC record for only one stream in the Staging table, the SFN, DLC and UDR Table 
		
Low 
		
Yes 
		
N/A 
		
 8 
		
Deployed 23/07/2021 
		
Expected 01/04/2022
		
On target
		
AQ's to be recalculated and effective as of 1st April 2022 
		


	
	

		
65001
		
Open 
		
3/30/2021
		
When a Site Fault Notification Read (SFN) is uploaded in the system for a Class 4 Prime site, the 
net-off read, volume, and energy are not being retained correctly in UK Link 
		
Medium 
		
Yes 
		
N/A 
		
 1 
		
Deployed 30/08/2021 
		
11/1/2021
		
On target
		
Fix deployed and data correction completed in August. Awaiting financial adjustment 
		


	
	

		
65220
		
Open 
		
5/9/2021
		
Reconciliation is not calculating correctly for class 3 prime site as it is using same volume which is present in the system for updating net-off volume and energy.
		
High 
		
Yes 
		
N/A 
		
 34 
		
Deployed 03/12/2021 
		
TBC 
		
On target
		
Fix deployed. Awaiting business assurance on data correction and then requires financial adjustment 
		


	
	

		
65665
		
Open 
		
7/20/2021
		
Final read date for Final Exchange Read and Final Class Change Read is being incorrectly updated in the system when the RGMA effective date is the same as the Shipper transfer effective date
 
		
Low 
		
Yes 
		
N/A 
		
 1,042 
		
Deployed 09/10/2021 
		
3/1/2022
		
On target
		
Fix deployed and AQ's effective as of 1st March 2022, financial adjustments required 
		


	
	

		
65810
		
Open 
		
8/9/2021
		
Volume is being incorrectly updated in the system, when a must read is inserted prior to a Shipper transfer estimated read 
		
Medium 
		
Yes 
		
N/A 
		
 2 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
65922
		
Open 
		
8/23/2021
		
An incorrect read is being selected as the next actual read for Class 4 sites with a corrector, where the next read does not have a uncorrected read populated 
		
Medium 
		
Yes 
		
N/A 
		
 4 
		
Deployed 03/12/2021 
		
3/1/2022
		
On target
		
Fix deployed, awaiting financial adjustment 
		


	
	

		
66314
		
Open
		
10/5/2021
		
AQ Correction Requests (.AQI) are being processed and updated within UK Link even though a cancellation request has been received 
		
Medium 
		
No
		
N/A 
		
TBC 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
66366
		
Open
		
10/12/2021
		
Previous read date is being incorrectly used as the Final Exchange Read (FINX) and and Final Class Change Read (FINC) when the appointment date is the same as Shipper move-in date 
		
Medium 
		
Yes
		
N/A 
		
 43 
		
Deployed 24/01/2022
		
TBC 
		
On target
		
Fix deployed and awaiting business assurance on data correction 
		


	
	

		
66428
		
Open
		
10/25/2021
		
For a site where a class change occurs from class 4 to 3 on D date followed by shipper transfer on D+10 where the transfer read is estimated, the site is Reconciled and billed till D+10 date. When a Replacement read is loaded for the transfer date on D+10, the previous volume is being incorrectly populated
		
High 
		
Yes
		
N/A 
		
 202 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
66429
		
Open 
		
10/25/2021
		
For class 4 sites, when inserting a read on the first of the month, two variances are being generated at the end of the previous month following reconciliation (only one variance should be generated) 
		
Medium 
		
Yes
		
N/A 
		
 8,751 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
66623
		
Open 
		
11/22/2021
		
Class 4 Prime-sub sites, When Shipper transfer is performed for sub site on D date followed by loading an actual read through a read submission file (within transfer window(D to D+5)) the transfer read estimation is not getting triggered 
		
Medium 
		
Yes
		
N/A 
		
 - 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
66624
		
Open 
		
11/22/2021
		
When a read is submitted by the outgoing Shipper on D-1 for a Prime site, the read is being incorrectly loaded as an active read 
		
Medium 
		
Yes 
		
N/A
		
 3 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
67274
		
Open 
		
1/24/2022
		
Consumption Adjustments for Class 4 sites are not being applied by CMS for one day whereby the Final Class Change Read (FICC) and Final Exchange Read (FINX) are present on the same date and adjustment start date and end date are same in UK Link

Consumption Adjustments for Class 2 sites are not being applied where adjustment end date is the same as Shipper end date
		
Low 
		
No 
		
N/A
		
TBC 
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
67319
		
Open 
		
1/31/2022
		
When a Site Visit read is inserted between 2 actual reads for Class 1 & 2 DM sites, the Site Visit read insert is not populating the next read date within UK Link 
		
High 
		
Yes 
		
N/A
		
 8 
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
67938
		
Open 
		
5/12/2022
		
Volume/ energy is being incorrectly calculated when an actual read is loaded after an estimated transfer read. This is due to the last actual read on the meter point being an inserted actual read 
		
High 
		
Yes 
		
N/A
		
62k 
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
68006
		
Open 
		
5/26/2022
		
Where a meter point has had a class change from a 4 to 3 and back to 4, any meter activity received for the lastest class 4 period is resulting in the TTZ being incorrectly calculated for the RGMA read. TTZ calculation is incorrectly using the class 4 site read, but it should use the class 3 read instead.
		
Medium 
		
No 
		
N/A
		
TBC 
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
68016
		
Open 
		
5/28/2022
		
When an LDZ Exchange read is estimated on the LDZ change date for Non Daily Metered sites, the read, volume/ energy are not being correctly stored within UK Link.  
		
Low 
		
Yes 
		
N/A
		
0
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
68019
		
Open 
		
5/28/2022
		
When a cyclic read with read reason 'N' is loaded within the D+6 to D+10 window of the Shipper transfer date for Class 4 Prime sites, the opening transfer read (OPNT) which is loaded into UK Link is missing the Meter/Corrector Serial Number and estimated energy on Net-off device is incorrect
		
Medium 
		
Yes 
		
N/A
		
 2 
		
TBC 
		
TBC 
		
No resolution dates
		
Testing of fix is underway 
		


	
	

		
68020
		
Open 
		
5/28/2022
		
For a prime site where a class change occurs from class 3 to 4, the estimated class change read (FICC)  is being incorrectly loaded into UK Link.
For impacted sites, reconciliation is not occuring between the last cyclic read to the final class change read
		
Low 
		
Yes 
		
N/A
		
0
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
68059
		
Open 
		
6/9/2022
		
When a Shipper transfer occurs on D date with an LDZ change occurring on D-1 (for Class 4 prime sites), the LDZ exchange estimation read is being incorrectly loaded into the system as 'inactive' which is creating an exception (LD01). This is whilst the shipper transfer is still in progress. After the Shipper transfer reads are estimated on D date, the Auto-resolution of the exception is failing to adjust the Volume and Energy against the LDZ exchange read
		
Medium 
		
Yes 
		
N/A
		
0
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing 
		


	
	

		
68071
		
Open 
		
6/13/2022
		
Incorrect Formula Year SOQ (FY SOQ) has been provided in the AQ Notification Files (.NRL) which were issued in March (effective date of 1st April 2022) and, where it was issued, in April (effective date of 1st May 2022).
This does not impact AQ calculation
		
High 
		
Yes 
		
Incorrect FY SOQ values shown in April and May NRL Files for some MPRN
		
 3,300 
		
TBC 
		
TBC 
		
No resolution dates
		
Analysis of fix is ongoing