Need to delete entire chat history in Teams

Question

Hello

We would like to delete the entire Teams chat history for one of your employee who left our organization and we don't want the chat history to be recoverable.

Is there a way we can go about this

Answer 1

Hi @IBN ,

Could be this helpful for you?

https://techcommunity.microsoft.com/t5/microsoft-teams/how-to-remove-entire-teams-chat-history-for-a-o365-user/m-p/1484977

Answer 2

Hi @IBN ,

We would like to delete the entire Teams chat history for one of your employee who left our organization and we don't want the chat history to be recoverable.

According to this official document, Teams chats messages can be deleted by using retention policies for Teams, so for your requirement, you can consider creating a retention policy to permanently delete Teams chats messages for this user:

1. Go to Microsoft Purview compliance portal, select Data lifecycle management > Retention Policies.
2. Select + New retention policy to start the Create retention policy configuration, and name your new retention policy.
   
3. Choose Static, Teams chats, specify the user you want to include:
   
4. For Decide if you want to retain content, delete it, or both page, specify the configuration options for deleting content:
   
5. Complete the configuration, review and save your settings.
   

More details, you may refer to: Retention policy for Teams locations

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