Unused Teams meeting Planner boards will be deleted after 180 idle days
Reviewed by Helen Jones
Microsoft will automatically expire Planner plans that were created from Teams meetings, including those made through Meeting Notes or Loop, if they have no task activity for 180 days in a row. The change, announced as Message Center MC1479508 and Roadmap 571392, is due to roll out worldwide in early to mid-October 2026. Activity means creating, editing, or deleting a task. Opening or viewing a plan does not reset the clock. Only the Planner plan and Planner-specific data are removed. Tasks that live in Loop and the meeting notes themselves stay. Meeting organizers get email 30 days and 7 days before deletion, with a Keep plan option that adds another 180 days as often as they choose. After deletion, recovery is possible for 30 days only if an IT admin asks Microsoft support. After that, the plan is gone. No plan can be deleted sooner than 180 days after the rollout starts.
Meeting Planner boards have piled up as a side effect of Teams. They sat in Planner forever even when nobody owned a task list. Admins had no built-in way to age them out without hunting them by hand. From October, those idle boards start leaving on their own. That is useful sprawl reduction, but it is not a general Planner or SharePoint lifecycle rule. People who only open a board to look will still get deletion mail, and restore is a support ticket, not Recycle Bin. Expect a short burst of 'where did the plan go?' tickets, not a tenant-wide content wipe.
Analysis
Treat this as a trend to watch, not a governance project. Send one note to meeting organizers that Keep only works if someone actually edits a task, then tell the helpdesk whether you will file Microsoft restore requests in the 30-day window or treat expired meeting plans as disposable.
Source note
Pulse published by Collab365 Spaces, reviewed by Helen Jones on . Cite as "Unused Teams meeting Planner boards will be deleted after 180 idle days", Collab365 Spaces. 2 sources referenced.