Here you can search for the most Frequently Asked Questions (FAQs) for several areas across the site, including our various groups, events, services and improvement programmes. You can search for a specific FAQ category using the dropdown menu on the right, and view all of the relevant FAQs for any category by selecting the corresponding ‘View all’ button.

If you are unable to find what you need, please don’t hesitate to contact us.

MO Portal

Partners Accounts

Certificates and IP Addresses

Operations and Release Working Group (ORWG)

Service Desk


About MOSL

Bilateral Transactions Programme

Business planning

Code Change Committee



MAC and Non-Trading Disputes

Market Entry Assurance (MEA)

Market Exit - Interim Supply Allocation

Market Improvement Fund

Market Operator (MO) Disputes

Market Re-assurance

Meter Reads


Retailer Wholesaler Group (RWG)


Strategic Panel


Trading Disputes


Learn more about the changes being made to the market codes.

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View all of the changes that are currently in consultation.

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Training and Guidance

Visit our Training and Guidance hub.

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