Loop Task List Not Syncing With Planner or To Do

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Ongoing Loop, Planner, To Do Updated November 14, 2026Based on 3 user reportsHow we research

Quick answer

Only Loop Task Lists sync to Planner and To Do, and users report missing assignees, empty bulk-pasted tasks and duplicates after edits in both places. Edit in one place at a time and avoid duplicating pages with task lists.

Most likely fix: Confirm it is a Task List

How to fix it

Try these in order — the most common fix is first.

  1. 1. Confirm it is a Task List

    1. Only Task Lists sync to Planner and To Do, not progress trackers
    2. Check that the component appears in Planner
    Did this fix it?
  2. 2. Test with another plan

    1. Try a different plan in Loop to see if the problem is limited to one plan
    Did this fix it?
  3. 3. Reduce sync triggers

    1. Avoid bulk-pasting tasks into Planner
    2. Avoid duplicating pages with task lists
    3. Make edits in one place at a time
    Did this fix it?

Symptoms

Assignees set in Planner do not show in Loop, bucket moves are not reflected, tasks appear empty or duplicated many times, or new task lists do not show in Planner.

Why it happens

  • Back-and-forth edits in Loop and Planner
  • Bulk copy and paste into Planner
  • Duplicated pages that contain task lists
  • Using a progress tracker, which does not sync, instead of a Task List
  • Known sync reliability problem with no documented way to force a sync

This guide also covers

  • loop task list not syncing with planner
  • loop tasks duplicated
  • loop to do sync
  • microsoft loop planner integration

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