Amendments to D0312 to align with BSC CP1622
Date of latest update
Type
Change
ID
R0300
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the June 2026 REC Release.
Summary
Elexon have raised CP1622 to amend the Validation rules within the Supplier Meter Registration Service (SMRS) for the Number of Register Digits Data Item within the IF-005 Market Message, to allow digit values from 1–9, ensuring accurate data and reducing exceptions. There are no Validation rules related to the D0312 Market Message which need to be amended under the Balancing and Settlement Code (BSC), but the D0312 itself contains a Data Item Rule regarding the Number of Displayed Register Digits which needs to be amended in line with CP1622.
Impacted REC Parties and Market Participants
Status
Implementation Date
26 June 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0103 | Central provision of DCC Technical Contacts for requesting test certificates |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
Amendments to D0312 red-lined data spec V0.1
Archive
Off
Document title
Amendments to D0312 red-lined data spec V0.2
Archive
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Document title
20260205 CP1622 R0300 industry workshop slides
Archive
Off
Problem Statement
BSC CP1622 is looking to address that SMRS cannot accurately update the Number of Displayed Register Digits for a SMETS2 Smart Electricity Meter due to Validation rules currently in place. The Validation rules proposed to be amended are those on the IF-005, which has direct impacts to the D0312.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
R0300 submission form
R0300 Change Report (Proposal Plan) V1.0
R0300 Consolidated Impact Assessment Responses PUBLIC v1.0
R0300 Update to Plan V1.0 approved 19.03.26
R0300 Change Report (For Consultation) V1.1
R0300 Consolidated Consultation Responses V1.0
R0300 Change Report (Final Recommendation) V1.0 approved 29.04.26
Company Name
-
Review status
Review required
Meter Configuration Tables V2.0
Date of latest update
Type
Change
ID
C3-0149
Urgent
No
Latest Update
-
Summary
Following approval of BSC CP P503 Unfreezing MDD to enable load diversity - Elexon BSC, new versions of Market Domain Data (MDD) have been published on the Elexon Portal on 04 December. This Urgent modification temporarily unfroze certain MDD entities in order to apply new Standard Settlement Configuration (SSC) and Time Pattern Regime (TPR) combinations. The REC Meter Configuration Tables and the Market Domain Data are presently within a Change Freeze Period until the closure of the MHHS Transition Period and therefore must remain aligned. On 10 December, the RECMEP, as the responsible committee for changes to the REC Meter Configuration Tables, approved a change to update the REC Meter Configuration Tables to align with the P503 changes made under MDD
Status
Implementation Status
Date Raised
Date of Update to Priority
Stages Selection
Company Name
Code Manager (RTS)
Review status
Review required
Data Latency Targets for the GES Service Definition
Date of latest update
Type
Change
ID
R0299
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the June 2026 REC Release.
Summary
R0277 – Data Latency SLA alignment for Gas Enquiry Service amended two performance levels within the Gas Enquiry Service (GES) Service Definition. However, these changes only addressed ambiguity on when the performance level applied from and to and increased the number of hours in which data will be available to Authorised Persons within the Supply Point Switching API. This change will seek to support the changes made under R0277 whilst also providing a suitable percentage SLA target for the Gas Enquiry Service Provider to meet these measures.
Status
Implementation Date
26 June 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0103 | Central provision of DCC Technical Contacts for requesting test certificates |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R0299 Legal Text for Consultation
Archive
Off
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
R0299 submission form
R0299 Change Report v1.0 (Consultation) APPROVED
R0299 Change Report (Final Recommendation) v1.0 APPROVED
Company Name
-
Review status
Review required
Annual Review of the Performance Assurance Report Catalogue (2025-26)
Date of latest update
Type
Change
ID
R0298
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented on 27 March 2026.
Summary
The Code Manager is required to perform an annual review of a number of PAF items, including the PARC. The PARC has already been updated several times over the course of 2025 through a series of REC Changes (including R0173, R0202, R0254, R0259). We have conducted an end-to-end review and have identified the other changes are required.
Status
Implementation Date
27 March 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0100 | Update to Error Handling Documents |
Documents
| Name | Version | Last updated | Actions |
|---|---|---|---|
| 1.0 | 23 Jun 2026 |
|
|
| 1.0 | 08 Jun 2026 |
|
Download
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Implementation Status
Date Raised
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
Performance Assurance Report Catalogue 5.16 - Redlined
Archive
Off
Problem Statement
To ensure REC Parties and Service Providers are aware of reports they must provide for Performance Assurance as well as reports obtained from central data sources (such as, but not limited to, the DIP Manager) used in assuring their performance within the market. It is essential these reports are maintained in line with changes to Code processes as well as changing risk landscape.
Stages Selection
SME
SME Role
Lead Assurance Analyst
R0298 Issue Form
R0298 - Change Report (For Consultation) V1.1 (20.01.2026)
R0298 - Consolidated Consultation Responses (Non-Confidential) 12.02.2026.
R0298 - Change Report (Final Recommendation) V1.0 (Approved) 24.02.2026
Company Name
-
Review status
Review required
Meter Manufacturers Make and Type not Populated in SMRS
Date of latest update
Type
Issue
ID
I0297
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
An Update to Plan has been approved by the REC Technical Expert Panel on 25 June 2026.
Summary
The Meter Manufacturers Make and Type (J0410 / DI-048) was not populated as part of the MHHS Programme's data cleanse. However it is part of the SMRS maintained Meter Technical Details (MTDs) for Smart Meters which replace the DTC MTD Market Messages for Smart Meters in the MHHS environment. It is not currently possible to populate this item in the legacy arrangements.
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
Following MHHS Migration, the MTDs provided by SMRS do not include the Meter Manufacturers Make and Type, as this replaces the existing D0149/D0150 Market Messages it could lead to the information being lost. This will mean Energy Suppliers and MOAs will not know the make and type of meter installed at a particular Site.
Stages Selection
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
I0297 submission form
I0297 Change Report (Proposal Plan) V1.0
I0297 Update to plan
I0297 Legal Drafting
Company Name
-
Review status
Review required
Registration Id Required for MHHS Appointments
Date of latest update
Type
Issue
ID
I0296
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
12/05/2026 - The Code Manager have developed a solution which has been live since 05 May 2026. More detail can be found on the REC Portal Wiki. A Closure Report has now been published, and this Issue has now been classed as resolved.
Summary
The RegistrationId (DI90043 / DI849) is required by SMRS to be included in the IF-031 'Supplier Agent Appointment Request' Market Message to allow the SMRA to process the appointment request. However not all Suppliers hold the RegistrationId for all Meter Points, in particular those that have not undergone a Registration managed by the Central Switching Service (CSS)
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As part of the solution for REC Issue I0296 - Registration Id Required for MHHS Appointments the REC Code Manager have developed a process to provide Energy Suppliers the Registration Id for Metering Points that have not been through a Central Switching Service (CSS) Registration Managed Switch. This is to allow Energy Suppliers that may not hold the Registration Id for these Metering Points to populate the Market-wide Half Hourly Settlement (MHHS) Agent Appointment Messages required to initiate a MHHS Migration.
- More detail of the solution can be found: https://recportal.co.uk/rec-wiki-mhhs/-/knowledge_base/market-wide-half-hourly-settlement/provision-of-registration-id-required-for-mhhs-appointments?utm_source=emailoctopus&utm_medium=email&utm_campaign=Weekly%20Bulletin%20-%202026-05-01
Proposed Solution Document
Document title
I0296 Closure Report_v1.0 (12 May 2026)
Archive
Off
Problem Statement
Not all Energy Suppliers hold the RegistrationId for all Meter Points, particularly those Meter Points that have not gone through a Switch, i.e. have not undergone a Registration managed by the CSS. The RegistrationId is currently only available where a Metering Point has been through a CSS managed Registration. Without the RegistrationId available to Energy Suppliers, not all Metering Points will be able to migrate putting the MHHS Migration and Milestone M15 at risk.
Stages Selection
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
I0296 submission form
Company Name
-
Review status
Review required
Entry Assessment Forms
Date of latest update
Type
Change
ID
C3-0148
Urgent
No
Latest Update
-
Summary
The Entry Assessment Forms have been updated for their annual review, and includes changes directly addressing issues experienced with applicant submissions over the past year, such as common errors and potential ambiguities within the question sets. Additionally, Question 4.8 has been added to capture information that is shared as part of the MHHS QAD process for existing entrants but not new entrants, and a number of housekeeping updates have been made.
Status
Implementation Status
Date Raised
Date of Update to Priority
Stages Selection
Company Name
Code Manager (RPA)
Review status
Review required
REC Entry Assessment Information Pack
Date of latest update
Type
Change
ID
C3-0147
Urgent
No
Latest Update
-
Summary
The Entry Assessment Information Pack has been updated for its annual review, and includes changes that incorporate recent industry MHHS (Market-Wide Half-Hourly Settlement) updates as well as housekeeping changes.
Status
Implementation Status
Date Raised
Date of Update to Priority
Stages Selection
Company Name
Code Manager (RPA)
Review status
Review required
Implementation of IF-051 Data Refresh in EES for BSC CP1607
Date of latest update
Type
Change
ID
R0294
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
07/07/2026 - The Change Report (Update to Plan) has been approved by the REC Change Panel. This Update to Plan reset the Priority Category and urgency status of R0294, following the deferred implementation of the lead BSC CP 1607. R0294 continues to be on hold until further solution development is undertaken as part of CP 1607. The Code Manager will continue to work with Elexon and Service Providers for future progression of any changes to implement the IF-051.
Summary
The IF-051 provides a refresh of data from Supplier Meter Registration Service (SMRS) to the Electricity Enquiry Service (EES) (REC) and Market Data Service (BSC). Currently the REC does not hold any detail regarding the DIP Market Messages that the EES is required to receive and process. Due to the nature of the IF-051, the EES Provider obligations need to be clear to ensure the interface can be received and processed appropriately.
Impacted REC Services
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
EES Service Definition v4.1 - redlined for IF-051
Archive
Off
Document title
366_05B CP1607 IF-0XX_Proposed Data Refresh Flow v0.1
Archive
Off
Document title
R0294 EES Service Definition REDLINED for Consultation
Archive
Off
Document title
CP1629 Attachment C IF-051 Refresh Flow v2.0 REDLINED
Archive
Off
Document title
R0294 Solution Development Report v1.0
Archive
Off
Problem Statement
BSC CP 1607 will implement a new DIP Market Message, the IF-051 ‘Data Refresh’ on 26 March 2026. EES will be a recipient of that change. If EES is not able to receive and process instances of the IF-051, data in EES will be misaligned with other industry systems (SMRS, DIP and MDS) meaning that it will not maintain its role as the accurate reference point for industry participants. This could lead to potential disruption of industry processes.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
R0294 Submission Form
R0294 Change Report (Proposal Plan) Approved v1.1 16.12.2025
R0294 Change Report (Consultation) Approved v1.0 04.02.2026
R0294 Consolidated Consultation Responses v1.0
R0294 - Change Proposal Re-Plan v1.0 (Approved) 25.03.2026
R0294 Change Report (Update to Plan) v1.0 Approved 07.07.26
Company Name
-
Review status
Review required
Theft Target Methodology v4.0
Date of latest update
Type
Change
ID
C3-0146
Urgent
No
Latest Update
-
Summary
In line with the Theft Detection Incentive Scheme, the Code Manager has reviewed the Theft Target Methodology, and made the following changes: • The Theft Detection Value has been adjusted using the Consumer Price Index (CPI) data provided by the ONS (an indicative figure has been provided as the final December figure is not yet available). • Percentage Multipliers required for the changes introduced by R0173 have been added to the TDV section. • Theft Targets have been updated based on the latest available information on the split of smart/non-smart meters in the domestic sector. • The Attribution Methodology has been amended to remove references to the previous derogation that applied for DPI adjustments to the 2025/26 TTM.
Status
Implementation Status
Date Raised
Date of Update to Priority
Stages Selection
Company Name
Code Manager (RPA)
Review status
Review required