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

Announcements Arpan Das

25/03/2026 12:13:00 PM

NHSmail Reference: INC46782205

Microsoft Reference: TM1261085

Issue Status: ONGOING

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.

Current Update: 25/03/2026 12:13:00 AM – Microsoft has identified that the planner assignment setting in the TAC has been unexpectedly changed and set to ‘No one’. They are reviewing recent service changes to identify the source of the issue and in the meantime, admins may be able to update the setting in the TAC from ‘No one’ to ‘Everyone’ to mitigate impact.

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 update by: Wednesday, March 25, 2026, at 2:00 PM UTC