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How to get back Teams Chat History - Teams Retention Policy

IBN 4,476 Reputation points
2022-06-24T10:08:33.09+00:00

Hello

Please i need your help on this.

A retention policy was set up to delete chat history in Teams. But it seems the configuration was misconfigured and all Chats older than 1 Month are gone. The problem started since June 23rd 2022.

Please how we do get back the chat history for our users.

Microsoft Teams | Microsoft Teams for business | Other

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  1. Paul van Berlo 826 Reputation points
    2022-06-24T19:20:43.03+00:00

    It’s a little bit more complex unfortunately. If a retention policy is set up for deletion only and there’s no other form of legal hold enabled for a user, data will be permanently deleted from the hidden SubstrateFolder potentially much quicker than 30 days. Generally what happens is that after a message is marked to be deleted, it can take a few days before it is actually deleted and moved into the SubstrateFolder, from there it can take 1-7 days before the message is permanently deleted.

    It is still worthwhile to check if messages can be found using a content search.

    https://learn.microsoft.com/en-us/microsoft-365/compliance/retention-policies-teams?view=o365-worldwide

    https://learn.microsoft.com/en-us/microsoft-365/compliance/retention-policies-teams?view=o365-worldwide#example-3-delete-only-after-1-day

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  2. Holger Bunkradt 16 Reputation points
    2022-06-24T16:14:15.993+00:00

    Hi 66304432,

    deleted chat will be stored for 30 days in a hiddden store in Exchange. You could use search and compliance center, but it is not possible to do for all users.

    recovering-microsoft-teams-messages

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