Metering Asset Manager (MAM) Communication Method Register
Summary
Studies conducted by the REC Performance Assurance (RPA) function of the REC Code Manager have concluded that gas market data fidelity may be improved by reducing the frequency of missed messages between Metering Asset Managers and other REC Parties. This Issue seeks to explore mechanisms by which a reduction in the number of permissible communication methods used by MAMs could support the data quality improvement objective.
Latest update and next planned activity
Date of latest update
Latest Update
This Change Proposal has been implemented as part of the February 2026 REC Release.
Impacts Overview
Impacted Consumers
Gas
Impacted REC Parties and Market Participants
Energy Supplier
Impacted REC Documents
Schedule 14 - Metering Operations
Impacted REC Services
Gas Enquiry Service (GES)
Other Industry Codes impacted
Uniform Network Code (UNC)
Priority and rationale
Standard
Priority last updated on 29 May 2026
Solution development
Problem Statement
MAMs communicate with each other, and with other parties, using up to three possible methods as they send Market Messages in line with their obligations in the REC. It has been suggested that moving to a single communication method might help mitigate gas data quality issues. This Issue seeks to explore an interim solution to facilitate this.
No documents available.
There is currently no Change Plan.
Original submission
Change details
Amy Crowe-Lamont - -
25 Jul 2024
Change details
Gas MEMs Move towards a single interface to be mandatory for key market messages to be sent via.
This will help support and improve communication channels to reduce missing messages and rejections not being worked whilst developing the process for customer appointed MEMs and ultimately simplify.
O This solution was proposed given that various methods (DTN, IX and emails) are used in the market for organisations to communicate with one another, however, the variability in methods can cause confusion and a high risk of missing messages.
O Even though there are standard formats which the industry should send the data flows, the DTN itself does not currently provide validation on the gateway. This means that if an organisation sends information via the DTN gateway then they do not have to send a standard format and often results in rejections, as recipient identifies the message is invalid when it enters their system.
O On the other hand, the IX method does provide some validation and validates the information. This means that there could be an opportunity here to remove the DTN (which will inevitably happen as a result from MHHS) and enhance the IX to allow that one point of contact for all organisations. Here the principle wouldn’t change the gateways remain the same, but it potentially be a quicker and simpler method.
O Even though there are standard formats which the industry should send the data flows, the DTN itself does not currently provide validation on the gateway. This means that if an organisation sends information via the DTN gateway then they do not have to send a standard format and often results in rejections, as recipient identifies the message is invalid when it enters their system.
O On the other hand, the IX method does provide some validation and validates the information. This means that there could be an opportunity here to remove the DTN (which will inevitably happen as a result from MHHS) and enhance the IX to allow that one point of contact for all organisations. Here the principle wouldn’t change the gateways remain the same, but it potentially be a quicker and simpler method.
O Some more benefits to this solution could be:
Easier to manage and for the performance assurance team to monitor activity in the market through increased utilisation of data driven insights.
O Some drawbacks could be:
The costs are currently not defined, therefore it’s possible that this is not cost-beneficial.
This solution is high impact and will take time to implement. As an interim measure instead of standardising to a single interface, we could make sure that all industry participants know which interfaces are used by which Party. This would be achieved by creating a communication register and adding an obligation to the Code that Parties must keep this information up to date which is held on the REC Portal. The register would be simple and include:
• Party Name
• Company Registration Number
• Operational Contact
• Method of sending various flows (IX, DTN, Email).
We are aware that some organisations currently maintain similar records, so this would simplify and consolidate an existing process, so it can be used by all.
O An alternative view could be that the MEM updates the CDSP or GES by a specific route (single defined interface). This would ensure that the REC would not impact with commercial relationships between suppliers and MEMs. For this to happen, there could be an addition to the MEMs accreditation that they must have the capacity to communicate with GES and/or CDSP via a particular mechanism in order to operate in the market.
Easier to manage and for the performance assurance team to monitor activity in the market through increased utilisation of data driven insights.
O Some drawbacks could be:
The costs are currently not defined, therefore it’s possible that this is not cost-beneficial.
This solution is high impact and will take time to implement. As an interim measure instead of standardising to a single interface, we could make sure that all industry participants know which interfaces are used by which Party. This would be achieved by creating a communication register and adding an obligation to the Code that Parties must keep this information up to date which is held on the REC Portal. The register would be simple and include:
• Party Name
• Company Registration Number
• Operational Contact
• Method of sending various flows (IX, DTN, Email).
We are aware that some organisations currently maintain similar records, so this would simplify and consolidate an existing process, so it can be used by all.
O An alternative view could be that the MEM updates the CDSP or GES by a specific route (single defined interface). This would ensure that the REC would not impact with commercial relationships between suppliers and MEMs. For this to happen, there could be an addition to the MEMs accreditation that they must have the capacity to communicate with GES and/or CDSP via a particular mechanism in order to operate in the market.
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Impacts
Gas
Switching experience, Billing accuracy, Trust and confidence, Ability to pay
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Schedule 14 - Metering Operations
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No details provided
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No details provided
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Market Message Catalogue
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No details provided
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Central Data Service Provider Further Services, Gas Enquiry Service
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Energy Suppliers
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Uniform Network Code (UNC)
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No details provided
Priority & timing
No
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No details provided
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