Microsoft 365 Alert – Service Degradation – Power BI – Users are unable to load or refresh Microsoft 365 Usage Analytics reports in Power BI – RESOLVED

13/03/2026 08:40:00 AM

NHSmail Reference: INC46824380

Microsoft Reference: PB1308489

Issue Status: RESOLVED

Issue Description: Some users are unable to load or refresh Microsoft 365 Usage Analytics reports in Power BI

Final Update: 15/05/2026 09:11:00 AM– Microsoft has determined that this issue was due to a code defect that introduced an unusable authorization requirement necessary for refreshing and connecting data in the Microsoft 365 Usage Analytics Power BI report template, which made the data endpoints inaccessible and resulted in impacted. We’ve completed a full roll back of the offending deployment which introduced this code defect throughout the affected infrastructure and have since validated with a subset of affected users that this issue is fully resolved.

Scope of impact: Your organization is affected by this event, and some users located in Europe, Asia Pacific and North America attempting to load or refresh Microsoft 365 Usage Analytics reports in Power BI are impacted.

Root cause: A code defect introduced an unusable authorization requirement necessary for refreshing and connecting data in the Microsoft 365 Usage Analytics Power BI report template, which made the data endpoints inaccessible and resulted in impacted

Next steps: Microsoft are continuing to assess our deployment check and review processes to understand how this code defect with an unusable authorization requirement was introduced so that we may improve our service reliability and avoid similar issues from occurring in the future