Some messages from my private chat with user ******@gmail.com (before Oct 30, 2025) are missing, but the other person still has them.

Question

Hello, I am experiencing a serious synchronization issue with my teams account. In my private chat with the user ******@Gmail.com , all m messages before October 30, 2025 have disappeared or deleted from my side automatically. however, all the recent messages after that date are visible, and the other person can still see the entire conversation history, including the old messages that are missing for me. I have already signed out and back in, delete it and then installed the app on my iPad, tried using the web version on the PC, but the issue remains exactly the same. Could you please refresh or reading index the chat history for my account? I believe my messages are still stored on the server, but not displaying properly in my client. Thank you very much for your help. Kind regards, Dorsa Ahmadipour

Answer 1

Hi Dorsa Ahmadipour, I completely understand how concerning and frustrating it must be to lose access to important messages, especially when the other person can still see them.

To resolve missing Teams chat history confirm the chat isn’t hidden by searching and unhiding it if needed try accessing the conversation via the web version at teams.microsoft.com clear the Teams cache on Windows by deleting folders like Cache and GPUCache check for updates to ensure you're running the latest version fully sign out and back in to refresh sync and if you're an admin use Microsoft 365 Content Search or eDiscovery tools to recover chat history while also ensuring a stable internet connection to avoid sync issues.

Can you confirm if the missing messages were sent from the same device you're currently using, and whether any changes were made to your Teams account, device settings, or network around the time they disappeared?

Best regards
Lucky Charm

Answer 2

Hi Lucky, thanks for your detailed reply.

The chat is not hidden, and my Teams app is fully up to date.

The issue is very specific: only a part of my messages with one person (email: ******@gmail.com) are missing — all messages before October 30 are gone, while the newer ones after that date are still visible.

The other person can still see the entire conversation, including the older messages that I’ve lost.

Yes, the missing messages were sent from the same device I’m using now (an iPad).

I haven’t made any changes to my account, settings, or network around that time.

I’ve already signed out, reinstalled the app, and checked via the web version (teams.microsoft.com), but the missing history hasn’t reappeared.

Please check if my chat history with this user can be restored or re-synced from Microsoft’s server side.

Thank you so much for your help.

Best regards,

Dorsa Ahmadipour