Admins and users may be unable to access or utilize multiple features within some Microsoft 365 services

Title: Admins and users may be unable to access or utilize multiple features within some Microsoft 365 services User impact: Admins and users may have been unable to access or utilize multiple features within some Microsoft 365 services. More info: Specifically, Microsoft 365 for Education services, Microsoft Teams, and Microsoft 365 admin center were impacted, and all the affected scenarios consisted of the following: - Users couldn't access Search Coach and Search Progress in Teams for Education; reports indicated that it couldn't be added as a Teams tab and existing experiences were failing. - Parent/guardian ("related contact") information couldn't be retrieved through School Data Sync (SDS). Any scenarios depending on related contacts failed. -Education admins couldn't trigger batch age-gating operations from SDS through the Microsoft 365 admin center - Admins and users couldn't access Education configuration pages and saw an error message "cannot load page" in Microsoft 365 admin center - Admins couldn't create or manage Speaker Progress resources using Speaker Progress Graph APIs - Admins couldn't access or utilize Assignments scenarios that call Related Contacts indirectly. Final status: We've validated through monitoring our service telemetry that access requests are succeeding once again, confirming that this issue is resolved. Scope of impact: Admins and users who attempted to access or utilize any of the features listed in the More info section may have been impacted by this event. Start time: Monday, September 21, 2026, at 6:00 AM UTC End time: Saturday, September 26, 2026, at 12:20 AM UTC Root cause: A recent roll out of an authentication configuration was causing failures when processing requests to the listed affected scenarios. Next steps: -We're investigating the impacting authentication configuration to pinpoint why it was failing to process requests as expected and why this impact wasn't caught during the testing and validation phase so that we can prevent similar impact in the future. This is the final update for the event.

Title: Admins and users may be unable to access or utilize multiple features within some Microsoft 365 services User impact: Admins and users may be unable to access or utilize multiple features within some Microsoft 365 services. More info: Specifically, Microsoft 365 for Education services, Microsoft Teams, and Microsoft 365 admin center are impacted and all the affected scenarios consist of the following: -Users cannot access Search Coach and Search Progress in Teams for Education; reports indicate it cannot be added as a Teams tab and existing experiences are failing. - Parent/guardian ("related contact") information can’t be retrieved through School Data Sync (SDS). Any scenarios depending on related contacts fail. -Education admins can’t trigger batch age-gating operations from SDS through the Microsoft admin center. - Admins and users can’t access Education configuration pages and see an error message "cannot load page" in Microsoft 365 admin center - Admins can’t create or manage Speaker Progress resources using Speaker Progress Graph APIs -Admins can’t access or utilize Assignments scenarios that call Related Contacts indirectly. Current status: We've been alerted through our service monitoring that an issue is affecting all education tenants. We've identified that a recent rollout of an authentication configuration is causing failures when processing requests to the listed affected scenarios. We've applied a change to the affected configuration and are working on validating that it resolves this issue. Scope of impact: Admins and users attempting to access or utilize any of the features listed out in the More info section may be impacted by this event. This section may be updated as our investigation continues. Root cause: A recent roll out of an authentication configuration is causing failures when processing requests to the listed affected scenarios. Next update by: Saturday, September 26, 2026, at 2:00 AM UTC