Microsoft Teams is a workstream collaboration tool (similar to Slack).
ITS will migrate some data to the new platform. Individuals cannot migrate their own data.
Update 7/10: The Teams data mentioned below is migrating to the new platform. The completion time is still unknown.
Update 6-27: See the Sharepoint Online migration page for details re: access to Teams data.
Impacts & Actions Needed After the Migration
Teams uses Sharepoint Online for storage, so ITS is able to migrate groups, permissions, files, and Team membership. However, ITS is not able to migrate the content of channels, conversations, or connections to other services.
Team members may have been deleted. Check the membership of your Teams and re-add members if needed.