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XRN 5651
Updates to Class 3 and 4 Inner Tolerance Ranges used in Meter Read validation process

This XRN is part of XRN 5647 Minor Release Drop 11
Last Updated
22 Sep 2023
Release Type
Implementation Date
22 Sep 2023
Proposer Centrica Impacted DSC service area

Service Area 4 (Current Apr 21)

Meter Read/Asset processing

Customer Change Team Leader


Following the statistical analysis and findings that have been shared with DSC Customers at CoMC, the CDSP are requested to assess the feasibility of changing the Inner Tolerance Range within central and Shipper systems applied to Class 3 and 4 Supply Meter Points. In addition, the CDSP are asked to provide analytical data that would support Shippers in determining the revised tolerance values that should be defined within the UNC Validation Rules and consequently utilised by Shippers and within CDSP systems.

Where updates to the tolerance values are approved then this change is to include the application of these within central systems.

Impacted Customer Types

  • Shipper


Document title Comment Last updated CHMC outcome
Change Proposal CP raised 14/06/23 ChMC approved 09/06/23
Initial Review Stage not required N/A N/A
DSG Discussion  N/A 26/06/23 N/A
High Level Solution Options Stage not required N/A N/A
Solution Review Stage not required N/A N/A
Detailed Design

3216.1 - VO - PO

14/09/23 Issued for information, at ChMC 13/09/23
Evaluation Quotation Reports (EQR) Stage not required N/A N/A
Business Evaluation Reports (BER) Stage not required N/A N/A
Change Completion Reports (CCR) Stage not yet reached N/A N/A


Initial Review
Change Proposal raised 25/05/23
Status For voting at ChMC 09/06/23
Approved into development 09/06/23
Status ChMC approved
Solution Consultation
Expected: 00/00/00
Status Stage not required
Awaiting Delivery
Detailed Design Change Pack issued 30/08/23
Status Issued for information, at ChMC 13/09/23
In Delivery
Awaiting Delivery 22/09/23
Status Part of Minor Release 11
Expected: 22/09/23
Status Successfully Implemented

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