Importing from Slack, Hipchat, Flowdock, Basecamp, etc.
We are using Slack for a long time and now we are thinking to transition to MS Teams. In Slack it is possible to export all channel content's in JSON with links to files uploaded to slack.
It could be very useful to have the ability to import the slack history into MS teams.
Thank you for your continued feedback. We are currently working on this, and recently announced this feature for developers in Beta. For more information, please visit https://developer.microsoft.com/microsoft-teams/blogs/importing-3rd-party-platform-messages-to-microsoft-teams-is-now-available-in-beta/.
The ability to import existing channels from Flowdock into Teams so that we can keep history.