Microsoft 365 Alert – Service Degradation – Microsoft Teams – Some users may be unable to load Planner tabs within Microsoft Teams – RESOLVED

07/08/2024 08:35:00 PM

NHSmail Reference: INC44898305

Microsoft Reference: TM853590

Issue Status: RESOLVED

Issue Description: Some users may be unable to load Planner tabs within Microsoft Teams.

Final Update: 07/08/2024 12:14:00 PM – Microsoft have identified that a recent update to the Microsoft Teams Planner application, intended to optimize general tab editing and configuring processes, inadvertently contained a code regression that resulted in Planner tabs not loading as expected. They have reverted the update and confirmed after a period of monitoring that impact is no longer occurring.

Scope of impact: Impact was specific to some users, who were served through the affected infrastructure, attempting to load Planner tabs within Microsoft Teams.

Root cause: A recent update to the Microsoft Teams Planner application, intended to optimize general tab editing and configuring processes, inadvertently contained a code regression that resulted in Planner tabs not loading as expected.

Next steps: Microsoft are reviewing their feature update procedures to better identify similar issues during their development and testing cycles, in order to help prevent impact from occurring again.