The Clock: 24 September 2025

◆ Published: 24/09/2025


The Clock newsletter provides participants with updates and key information to support delivery of the MHHS Programme. The Clock will signpost you to events, plans, reports and documents to assist in planning, design, development, testing and delivery.

In this issue of The Clock we update you on:

  • Programme News
    • Celebrating a major milestone: Approval of Milestone 10 (M10) and Milestone 13 (M13) 
  • MHHS Transition Update
    • REMINDER: M10/M11 Cutover status reports 
    • REMINDER: Data Cleanse activities  
    • NEW! Early Life Support Issue Form  
  • MHHS Qualification Update
    • NEW! Timelines for upcoming Qualification activities by Wave  
    • NEW! Key updates to Non-Systems Integration Testing (SIT) Supplier & Agent Qualification Testing (QT) Artefacts  
    • NEW! Weekly Qualification Test Execution Forum (QTEF)  
  • Participant Checklist
    • NEW! Migration Sprint 0 is now open!  
    • NEW! Approved Code Artefacts for Milestone 8 (M8)  
  • Guidance Documents
    • NEW! Data Integration Platform (DIP) Meter Data Retriever (MDR) Guidance  
    • NEW! Updated Qualification Assessment Document (QAD) Guidance 
  • Upcoming events
    • Upcoming Governance Meetings 
  • What happened last week?
    • Last week's Governance Meetings 
    • MHHS Webinar: Migration Sprint 0: 18 September 2025   
  • Elexon & Data Integration Platform (DIP) Manager Update
    • REMINDER: DIP Manager online drop-in session for DIP Change Request DCR0004: 3 October 2025 
    • NEW! Data Integration Platform (DIP) Change Request Consultation: DCR0005 
    • REMINDER: Elexon Assurance Reporting Webinar: 16 October 2025 
    • NEW! Data Integration Platform (DIP) Change Request Consultation: DCR0006   

The Clock

To sign up to The Clock, please use the 'Sign Up' button in the footer on any of the pages on the website. You will then receive the latest issue by email every Wednesday.

Clock_front_page_24_Sept_2025.JPG