What is this notification about? This notice is to advise you of maintenance activities within the Production environment for the DDM Market Service to deliver the DDM BAU release 4.11.0.2.
When is the maintenance scheduled? Friday 29th May 2026 @ 18:00 (UK) to 18:00 (UK) on Saturday 30th May 2026.
How does this impact me? During the maintenance window, users will not be able to access the DDM or Data Extract Production Service.
What action must I take? Please cascade this information to the DDM and Data Extract users within your organisation.
Support If you require assistance please contact the DDM Service Desk on details below:
What is this notification about? This notice is to advise you of a planned maintenance within the Production environment for the API Gateway Market Service.
When is the maintenance scheduled? Sunday 31st May 2026 from 07:00 until 08.00 (UK).
How does it impact me? During the scheduled maintenance window, users will not be able to place API calls via the API Gateway Service in Production.
What action must I take? Please cascade this information to the any API Gateway users within your organisation.
Support If you require assistance please contact the LIMOSS Service Desk on servicedesk@limoss.london. Posted on
May 26, 2026 - 17:43 BST
What is this notification about? This notice is to advise you of planned maintenance within the Production environment for the API Gateway Market Service to allow for the annual certificate renewal.
When is the maintenance scheduled? Sunday 31st May between 19:00 and 22:00 (UK).
How does it impact me? The LIMOSS Portal, API Gateway and all APIs provided via the API Gateway will be unavailable to all users during the maintenance window.
Please note that LIMOSS SSO and access to Market Services such as DDM, is unaffected by this maintenance.
What action must I take? All organisations are requested to:
Inform relevant colleagues that this maintenance is taking place and that users may experience problems with the services listed above during the stated date and times.
During this maintenance window, users experiencing any problems calling APIs are advised to wait until the outage has completed and retry their request.
After the maintenance has completed, we advise all API subscribers and API publishers to test call an API via the Prod API Gateway
API publishers are advised to check that their app can correctly validate the JSON Web Token (JWT) received from the API Gateway.
If the call is successful, no further action is required.
If the call fails, please update the JWT Public key or contact the LIMOSS Service Desk.
Support If you require assistance please contact the LIMOSS Service Desk on servicedesk@limoss.london. Posted on
May 27, 2026 - 09:42 BST