Blackboard Groups and group tools do not transfer into Canvas. Groups will need to be recreated in Canvas using the Groups tool.
Groups in Canvas are much like separate course site for the users in a Group. Group tools include announcements, discussions, content pages, file storage and space for collaboration that are specific, and limited to, the users in that Group.
Groups are accessed in the People navigation button in your Canvas site. Instructors will like how easy it is to drag and drop members into Groups in Canvas.
For more info:
- Groups in Canvas https://community.canvaslms.com/docs/DOC-4131#jive_content_id_Groups