Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users may be unable to view the planner app in Microsoft Teams – RESOLVED

Announcements Arpan Das

25/03/2026 12:13:00 PM

NHSmail Reference: INC46782205

Microsoft Reference: TM1261085

Issue Status: RESOLVED

Issue Description: Some users may be unable to view the planner app in Microsoft Teams

More info: Admins may be able to update the planner assignment setting from ‘No one’ to ‘Everyone’ in the Teams admin center (TAC) to mitigate impact.

Final Update: 26/03/2026 08:39:00 AM – Microsoft has confirmed the fix rollout has completed successfully, and customer validation indicates the issue is resolved.

Scope of impact: Impact is specific to some users who are served through the affected infrastructure attempting to utilize the planner app in Microsoft Teams.

Next Steps: Microsoft are analyzing the affected infrastructure to identify opportunities for improvement that help prevent this issue from recurring.

They will provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days.