Migrate chat history Teams

There is currently no native Microsoft method to fully migrate Teams chat history between tenants, so you generally have three approaches.

Option 1: Use a third party migration tool. Some tools can migrate or preserve chat history, but fidelity varies. Reactions, timestamps, attachments, and conversation structure may not transfer exactly as they appeared in the source tenant.

Option 2: Export the chats using Microsoft Purview or eDiscovery for compliance and retention purposes. This preserves the records, but they will not appear as native chats in the destination tenant.

Option 3: Migrate the users, Teams, channels, and files while keeping the old tenant available in read only form for a limited period so users can reference historical conversations.

Before selecting a migration solution, I would confirm exactly how the vendor handles Teams chat data and what limitations apply.

A small pilot migration is definitely recommended before moving the full organization.

Old post I know, but I built a teams migration solution, both for teams Collab chats and also private 1:1 chats. I also offer the usual suite of migration tools as well.  Its migrated over 1036 teams chats from sites (Collab chats) and also 600+ users private 1:1 chats. We can do ms tenant to ms tenant, or to Google, or from Google to MS....

I had to build it, as migwiz doesn't migrate teams anymore, and neither do the other offerings, something to do with ews deprecation. Which we don't use,  our service is pure API.

Reach out to us if you ever need another migration: mailto:Sean.stimson@ashbirycompuyer

Deleted Hello Femke, I was just about to answer and noticed that had already been done 🙂

Anyway, there's a conversation that can provide you with some more information here

https://techcommunity.microsoft.com/t5/microsoft-teams/ms-teams-migration-one-tenant-to-another-office365-tenant/m-p/279349

As for a "tool" i noticed there is a requested feature at Teams UserVoice. Go there and vote to stay updated.

'Import / Export for data migration between tenants'

https://microsoftteams.uservoice.com/forums/555103-public/suggestions/30935956-import-export-for-data-migration-between-tenants