Clearing Teams chat from Teams room

Hi Brandccc ,

To delete chat history from specific Teams room consoles or resource accounts, you can use the Teams Retention policies. Retention policies allow you to specify how long Teams data should be retained and when it should be deleted.

To create a retention policy that applies only to Teams room/resource accounts and deletes chat history after 24 hours, you can follow these steps:

1. Sign in to the Microsoft 365 admin center (https://admin.microsoft.com) with your admin account.
2. Go to the "Admin centers" section and select "Teams".
3. In the Teams admin center, navigate to the "Messaging policies" tab.
4. Click on "Add" to create a new messaging policy or edit an existing policy.
5. In the policy settings, configure the "Message Lifetime" option to 1 day (24 hours) for the desired scope (Teams room/resource accounts).
6. Save the policy.

Once the retention policy is applied, it will start deleting chat history from the specified Teams room consoles after 24 hours. This policy will not affect chat history for other users in regular Teams accounts or meetings.

Note: The retention policy may take some time to propagate to the Teams room/resource accounts. Make sure to test the policy on a smaller scale before applying it organization-wide to ensure it behaves as expected.

Additionally, if you have the necessary permissions, you can manually delete the chat history from Teams room consoles by logging into the Teams web app, accessing the chat, and deleting the messages. However, automating this process through retention policies is a more efficient and scalable approach.

I have a similar situation and found that unfortunately, the setting in Teams Admin, Messages Policies, for Message Lifetime no longer exists. However, I was able to follow this thread to create a retention policy to achieve the same goal. How to permanently delete chat conversation after scheduled meeting concludes - Microsoft Community Hub