Thank you for posting this in Microsoft Q&A.
As per your requirement you need 2 specific permissions for user to access service health in Microsoft 365 admin center and also this user should be able to open case with Microsoft Support.
As Vasil Michev mentioned there is a default role in Entra ID "Service Support Administrator".
This role holds below permissions,
Actions | Description |
---|---|
microsoft.azure.serviceHealth/allEntities/allTasks | Read and configure Azure Service Health |
microsoft.azure.serviceHealth/allEntities/allTasks | Read and configure Azure Service Health |
microsoft.azure.supportTickets/allEntities/allTasks | Create and manage Azure support tickets |
microsoft.office365.network/performance/allProperties/read | Read all network performance properties in the Microsoft 365 admin center |
microsoft.office365.serviceHealth/allEntities/allTasks | Read and configure Service Health in the Microsoft 365 admin center |
microsoft.office365.supportTickets/allEntities/allTasks | Create and manage Microsoft 365 service requests |
microsoft.office365.webPortal/allEntities/standard/read | Read basic properties on all resources in the Microsoft 365 admin center |
Permissions that you are looking for are both available in this role. You can also refer below article,
If you want to only these 2 permissions for a specific role then currently this is not available in custom role. Entra ID custom roles are still worked upon by our PG team and they are still working on adding some more permission to user scope.
Let me know if you have any further questions.
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