Additional task-related features and issues within Microsoft Teams for business
Hi @A. Stewart,
Thank you for reaching out.
I understand how disruptive it is to open Teams on your desktop and suddenly find that the Planner app has disappeared - especially since the desktop version has been your reliable workaround for missing tasks in the browser.
Based on the information available, this behavior matches a known service issue currently listed in the Microsoft 365 admin center under Service Health with Issue ID TM1261085. Microsoft has confirmed that some users are unable to view or access the Planner app within Microsoft Teams, and the engineering team is actively investigating the root cause.
For reference: Service health - Microsoft 365 admin center.
Note: Access to the admin center is restricted to Microsoft 365 Global Admins. If you don’t have the necessary permissions, please contact your IT administrator for assistance.
According to the advisory, Microsoft’s recommended temporary workaround is for your IT admin to update the Planner app assignment in the Teams admin center - after clearing the Teams cache and resetting the user’s sign‑in state. The path is: Teams admin center > Planner > Users and groups > Edit availability > Everyone.
Microsoft also encourages admins to submit an impact report directly through Service health - Microsoft 365 admin center. These reports help Microsoft assess how widespread the issue is and can accelerate the resolution.
If this information is helpful, please consider upvoting the thread so it can assist others who may be experiencing the same problem.
Thank you again for participating in the Microsoft Q&A community. If you have any follow‑up questions or updates, feel free to reply. I’m happy to help further.
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