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XRN 5380
Introduction of a Micro Business identifier in Central Systems (Mod 0733)

Last Updated
22 Jul 2021
Release Type
Implementation Date
Proposer Xoserve Impacted DSC service area


To be confirmed

Customer Change Team Leader


UNC Modification 0773, has been raised to introduce a Micro Business identifier within Central Systems.

Ofgem launched the review of the Micro Business market as a result of evidence showing that the market was not working well for some Micro Businesses. In July 2020 Ofgem consulted upon an initial package of measures designed to improve Micro Businesses experience of the market.

The increasing introduction of Micro Business specific arrangements within Suppliers Licences creates a growing need to be able to easily and efficiently identify such sites within Central Systems. Without a central view of a customer’s status, we will inhibit the ability for all stakeholders to be able to provide services to those customers efficiently and consistently across the market.


In addition, the introduction of Faster and More Reliable Switching via the Central Switching Service from June to August 2022 further increases the need for this transparency of status to be made readily available as the market for switching becomes more agile and dynamic.


This Change Proposal has been raised in order to introduce the Micro Business identifier within Central Systems to be used by relevant parties. The suggested approach for this is to re-use the existing Market Sector Code by expanding the allowable value set to include an additional value.

Impacted Customer Types

  • Shipper


Document title Last updated Type
XRN5380 Introduction of a Micro Business identifier in Central Systems 13/Jul/2021 PDF


Initial Review
Change Proposal Raised 24/06/21
Status Awaiting ChMC approval
Expected: 07/07/21
Status ChMC approved into Capture
Solution Consultation
Expected: 00/00/00
Status Awaiting
Awaiting Delivery
Expected: 00/00/00
Status Awaiting
In Delivery
Expected: 00/00/00
Status Awaiting
Expected: 00/00/00
Status Awaiting

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