Copilot Chat History and Projects are not available in the new Copilot App

Your existing chats and Projects should move automatically to the updated Copilot app; Projects are now named Notebooks, while missing histories across devices indicate that the account’s content migration or synchronization has not yet completed.^1^

Access the migrated content

1. In the new Copilot app, open the left navigation pane.
2. Select Notebooks. Your former Projects should appear there under their existing content.
3. Fully quit and reopen Copilot on Windows and iOS. Do not merely minimize it.
4. Check for an in-app message stating that chats are moving or “coming soon.” If it provides a link to existing chats, use that link temporarily.
5. Allow additional time and check again. Microsoft states that migration duration varies with the amount and type of content, and devices can display different histories until synchronization finishes.^1^

Since you have already confirmed that every client uses the same personal Microsoft account, repeating account-switching or sign-in checks is unnecessary.

“Reference chat history” does not initiate migration

The Reference chat history setting controls whether Copilot uses previous conversations to personalize later responses and make inferences about your preferences. It is not the control that imports, displays, or synchronizes saved conversations.^2^

Therefore, leaving it enabled is appropriate, but toggling it is not a migration fix.

Protect the currently accessible information

Continue using the legacy app or copilot.microsoft.com while those locations still show the missing content, but make a separate copy of business-critical material now:

• Copy essential conversations into documents or notes.
• Save Project content and important generated files separately.
• Check OneDrive for files shared with or generated by Copilot; files in the updated standalone app are stored there.^3^
• Do not delete conversations from the legacy client or web interface while migration is unresolved.

This is particularly important because Microsoft documents an 18-month retention period for conversation history in the older Copilot experience.^4^

Report the incomplete migration

If chats and Notebooks remain absent after allowing time for synchronization, report it from the new app:

1. Select … in the upper-right corner.
2. Select Send feedback.
3. Select Report a problem.
4. Include:
   • The approximate date the new app was installed.
   • Windows and iOS versions.
   • Confirmation that the same personal Microsoft account is used.
   • Screenshots showing content present on the legacy/web experience but absent in the new app.
   • A note that Reference chat history is enabled.
   • Whether Notebooks is missing entirely or present but empty.

That is Microsoft’s documented escalation path for updated-app migration problems.^1^ The available documentation does not provide a manual command or import function to force legacy chats and Projects into the new app.

References

1. Troubleshoot your content in the updated Copilot app
2. Personalize what Microsoft Copilot remembers | Microsoft Support
3. Copilot App Updates for Personal, Work, and School Accounts | Microsoft Support
4. Conversation history in Microsoft Copilot | Microsoft Support