Copilot missing multiple recent chats

Barb T 0 Reputation points
2026-10-15T15:59:29.3733333+00:00

Hello, my chat history has experienced a severe migration failure. There is a complete gap in my history between October 9 and today. I have already opened an Incognito session to rule out local cache issues, and I have run a full export from the Microsoft Privacy Dashboard—the historical conversations are completely absent from the exported CSV although I can see a new chat I started today on this very subject. This is a back-end account profile link failure, not a visual sync delay I think. Please escalate this ticket to have an engineering administrator locate my orphaned chat database bucket and re-associate it with my Microsoft ID. Or give me some advice on how I might restore these chats. I use them daily.

Microsoft Copilot | Microsoft 365 Copilot | Development
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  1. AI answer

    2026-10-15T15:59:46.3166667+00:00

    There is no supported self-service method to restore chats that are absent from both Copilot chat history and the Microsoft privacy export.

    Based on the documented guidance for the updated Copilot app, the supported checks are:

    1. Confirm the correct account is in use.
      • Make sure the same personal Microsoft account, Google sign-in, or Apple sign-in used previously is selected.
      • Personal accounts and work or school accounts are separate, so verify the account switcher shows the expected account.
    2. Check whether the content is still moving.
      • In the updated Copilot app, chats and content can take time to move.
      • If the app shows an in-app link to older chats, use that link.
      • If chats show as “coming soon,” Copilot can still be used while chats and content continue moving.
    3. Restart and recheck.
      • Close and reopen the app, or refresh the web page.
      • If different devices show different chats, allow more time for sync and data movement to complete.
    4. Check for retired or renamed features.
      • Group Chat threads and content do not carry forward after August 18, 2026.
      • Projects are now shown as Notebooks in the left navigation.
    5. If the issue continues, report it from the Copilot app.
      • Select the ellipsis (…) in the upper-right corner.
      • Select Send feedback.
      • Select Report a problem.
      • Include when the issue started, device and operating system details, and a screenshot.

    The request to have an engineering administrator re-associate a back-end chat store is not a documented support path here. The supported escalation path in the available guidance is to submit Report a problem from the Copilot app with detailed diagnostics.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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