Microsoft 365 Alert – Service Degradation – Power BI – Some users may be unable to run SQL queries in Data Warehouse within Microsoft Fabric – ONGOING

Announcements Shagufta Naaz

11/03/2026 08:28:00 AM

NHSmail Reference: INC46770073

Microsoft Reference: PB1248171

Issue Status: ONGOING

Issue Description: Some users may be unable to run SQL queries in Data Warehouse within Microsoft Fabric.

More info: Despite having the required access and using delegated mode, affected users may be unable to run queries in warehouses and receive SELECT permission errors.

Current Update: 11/03/2026 08:28:00 AM –As the rollout which is intended to disable the offending change has completed, we’re in the process of validating that impact is fully resolved and additional mitigations will not be required.

Scope of impact: This issue may impact some users attempting to run SQL queries in Data Warehouse in Microsoft Fabric. This section may be updated as the investigation progresses.

Root cause: A recent service change for Microsoft Fabric to optimize authentication infrastructure pathways has introduced a code error, resulting in permission failures when attempting to evaluate and process SQL queries.

Next update by: Wednesday, March 11, 2026, at 1.00 PM UTC