MHHS Webinars & Open Days
MHHS Open Day: 25 March 2025
Thank you to everyone for coming to our MHHS Open Day on 25 March 2025. We were delighted that over 200 people were able to join us, either in person or virtually. The day was a big success, with engaging sessions and lots of questions asked throughout the day.
The focus of this Open Day was to build a shared understanding of Programme and participant readiness for Milestone 10 (M10) and beyond. The Programme provided an overview of key activities that need to happen to reach M10 and clarified what is required of participants beyond M10 as we move into the new arrangements.
If you couldn’t make the Open Day, or you want to remind yourself of some of the content, you can view the presentation slides below:
MHHS Open Day Presentation Slides
You can view the recordings from all the sessions via the link below. Here's a reminder of the topics covered on the day:
- Welcome & Senior Responsible Owner (SRO) Perspectives
- Ofgem Address
- MHHS Programme Update
- 26 weeks to Go Live
- Overview of Independent Programme Assurance (IPA) Milestone 10 Assurance Activities
- Participant Journey to Live Operation
- Qualification Health Check
- Feedback & Close
MHHS Open Day 2025: All recordings
We've pulled together a Q&A document capturing questions that were asked throughout the day. You can view this below:
Click here for a short feedback survey. We encourage you to please take five minutes to complete this. Thank you to everyone who has already responded.
If you have any other queries or you'd like to provide any additional feedback, please email us at [email protected]

MHHS Webinars Calendar
You can view a calendar for upcoming MHHS Webinars below. Any scheduled sessions will be shown below.

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June18Wednesday
Migration drop-in session
Go to SharepointThe Migration team is holding a dedicated drop-in session to support participants with any queries regarding the submission process and the Kestrel tool.
This session will take place on Wednesday 18 June 2025 at 13:00 – 13:30.
We’ve issued invitations to Suppliers.
If you have any questions, please email the Migration team at [email protected]
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June24Tuesday
QTF Training & Onboarding Webinar
Go to SharepointThis webinar placeholder has been issued to all QWG and SAQTSG attendees. The webinar is relevant to all Non-SIT Suppliers and Agents and any other participants who plan to use the Qualification Testing Framework (QTF), including Software Providers and Third-Party Providers.
The webinar will be facilitated by the Code Bodies and will cover both QTF Onboarding and Training.
QTF Onboarding will include:- Nomination of users for the QTF
- Nomination of defect manager(s) for ADO
- Nomination of users for MS Teams channels for day-to-day communications/queries.
QTF Training will cover:
- Setup and getting started (QT intro, logging into the QTF, etc.)
- QP Dashboard/QP Test Set
- Supplier MPAN files (legacy and gain csv files) and MDD
- Running QTCs
- QT evidence in ADO.
There will also be a dedicated Q&A to give participants an opportunity to ask any specific questions they have.
The recording and slides will be published on the Collaboration Base and MHHS website, along with a Q&A document capturing written responses to participant queries, following the webinar.
If you have any questions, please direct these to the Code Bodies at [email protected].
MHHS Webinars Slides & Recordings
If you have been unable to attend a webinar, you can access the slides and recordings via the links below to support your knowledge and delivery of the Programme.
If you have any questions, please email [email protected]
MHHS Webinar: Migration Drop-in Session: 28 May 2025
MHHS Webinar: Migration Drop-in Session: 16 May 2025
MHHS Webinar: SIT-A - Settlement Testing and Readiness Workshop: 12 May 2025
MHHS Webinar: Data Integration Platform (DIP) Onboarding Webinar: 6 May 2025
MHHS Webinar: MHHS Migration Submission Webinar (Kestrel): 23 April 2025
MHHS Webinar: Test Data – Regression /Settlement /Sandbox Data Loading Approach: 17 April 2025
MHHS Webinar: Test Data – SIT Non-Functional & SIT Operational Data Load Retrospective: 16 April 2025