The Clock: 4 June 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:

• Participant Checklist
  
  • REMINDER: Data Cleanse activities and deadlines 
  • REMINDER: Elexon Helix Supplier of Last Resort (SoLR) Consultation   
  • REMINDER: Migration Supplier Submission Round 2 - just over two weeks to go! 
  • NEW! Milestone 8 (M8) Code Artefacts approved at the Cross-Code Advisory Group (CCAG)  
  • NEW! Design Interim Release 8.11 Artefacts coming soon!  
• MHHS Qualification Updates
  
  • REMINDER: End-to-End Sandbox Test Data Approach & Plan Consultation   
  • REMINDER: Final Qualification Assessment Document (QAD) submissions for Systems Integration Testing (SIT) participants taking the ‘M11-Ready’ and ‘Not M11-Ready’ Qualification Pathways 
  • NEW! Qualification Testing (QT) Entry Checkpoint 1 for Qualification Wave 1  
  • REMINDER: Pre-Integration Testing (PIT) Requirements to Test Traceability Matrix (RTTM) submission for Wave 2 participants  
  • REMINDER: Initial QAD Submission for Wave 1 participants 
  • REMINDER: Initial QAD Submission for Wave 2 participants  
  • REMINDER: Legacy Settlement Arrangements Management Letters – the deadline passed on 31 May 2025 
  • NEW! Non-SIT Supplier & Agent Qualification Test Cases (QTCs) Steps (QTSs) for Qualification 
• Upcoming events
  
  • Upcoming Governance Meetings 
  • Extraordinary Systems Integration Testing Advisory Group (eSITAG): 11 June 2025 
  • NEW! Migration drop-in sessions: 11 & 18 June 2025 
  • MHHS Change Control Webinar: Change Request CR062: 11 June 2025 
• What happened last week?
  
  • Data Integration Platform (DIP) Manager Open Day: 20 May 2025 
  • Migration & Cutover Advisory Group (MCAG): 27 May 2025  
  • Cross-Code Advisory Group (CCAG): 28 May 2025  
  • Migration drop-in session: 28 May 2025  

The Clock

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