Image of back arrow Back to filtered results

XRN 5091
Deferral of creation of Class change reads at transfer of ownership

This XRN is part of XRN 5562 June 23 Major Release
Last Updated
15 Sep 2023
Release Type
Implementation Date
24 Jun 2023
Proposer EDF Impacted DSC service area

Service Area 4 (Current Apr 21)

Meter Read/Asset processing

Customer Change Team Leader


Currently following an accepted class change request the CDSP will issue an estimated read on the effective date of the class change. This is to support downstream processes in closing off the outgoing class period, allowing processes such as allocation and billing to run successfully. During a shipper’s ownership this does not present an issue as the class change timing is within their control and the estimated read issued can be replaced using the appropriate read file. However, where the class change occurs on the same effective date as a Change of Shipper (CoSh) the class change read is issued immediately and closes the opening read window. This prevents a valid opening read from the incoming shipper being accepted.

It should be noted that a shipper has very little control over a class change as a result of a transfer as when nominating a meter point there is no information provided that informs them as to what the product class currently is via UK Link Communications. The likelihood of this scenario occurring has increased following the change in the AUG factors in October 2019 and resultant increase in the number of class 3 sites as, where shippers gain meter points, generally speaking, as class 4 the transfer will result in an unseen class change and the issuing of the class change estimated read.

This change seeks to retain the Opening Meter Reading window regardless whether the Change of Shipper event is coincident with a Class change so that the Shipper is able to provide an Opening Meter Reading up until D+10. A further requirement is that the CDSP does not issue the class change read to the shipper on D where the class change is on transfer day.

Impacted Customer Types

  • Shipper



Document title Comment Last updated CHMC outcome
Change Proposal N/A 31/01/20 Approved at ChMC on 12/02/20
Initial Review Stage not used N/A N/A
DSG Discussions N/A 27/06/22 N/A
High Level Solution Options N/A 07/10/20 Solution Option 1 approved
Solution Review N/A 07/10/20 Solution Approved at ChMC on 07/10/20
Detailed Design

Comm Ref: 2808.3 -MT -PO


Descoped from November 21 12/05/21

Evaluation Quotation Reports (EQR) N/A 08/12/21 Approved at ChMC 08/12/2021
Detailed Design Comm Ref: 3050.1 -RT -PO 18/07/22 Approved at ChMC on 13/07/22
Business Evaluation Reports (BER) N/A 14/11/22 Approved at ChMC 09/11/22
XRN 5562 e-learning Online e-learning session 08/06/2023 N/A
Change Completion Reports (CCR) N/A 15/09/23 Approved at ChMC 13/09/23


Initial Review
CP raised 21/01/21
Status Approved at ChMC 12/02/20
Expected: 00/00/00
Status N/A
Solution Consultation
Expected: 07/10/20
Status Solution Approved at ChMC 07/10/2020
Awaiting Delivery
Change descoped from Nov 21 and moved backlog 12/05/21
Status Design Change Pack approved at ChMC on 13/07/2022
In Delivery
Expected: 00/00/00
Status N/A
Successfully implemented 24/06/23
Status Implemented

Contact the Change Team

Need to get in touch with a member of the Change Team?

You can email us at: and we'll get back on the same day between the hours of 9:00am to 4:30pm.