Tracking, updating, and organizing tasks within Microsoft Teams or integrated apps
This behavior matches a known service issue where some users are unable to view the Planner app and its tasks in Microsoft Teams (issue ID: TM1261085). In that incident, Planner plans and tasks were still available in Planner on the web, but the Planner app inside Teams stopped showing content for affected users.
Because this is a service-side problem, local troubleshooting (restarting the computer, changing filters, or switching to the Teams desktop/web client) does not resolve it. The tasks and completed items are not deleted; they are just not being surfaced in the Teams Planner experience for users routed through the affected infrastructure.
Recommended actions:
- Continue using Planner directly in the browser (Planner on the web) to access plans and tasks while the Teams-side issue is active.
- Contact the Microsoft 365 admin to check the Microsoft 365 Service health dashboard for the latest status on issue ID TM1261085 (or similar Planner/Teams advisories) and follow any remediation or timelines provided there.
- If the issue persists and no active advisory appears, have the admin open a support ticket with Microsoft, referencing that some users cannot view Planner in Teams while it remains available on the web.
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