Blackboard to Canvas Transition
During our transition from Blackboard to Canvas, we recommend that faculty who are currently teaching a course(s) on Canvas also post one announcement on Blackboard for that specific course(s).
Then, in your Blackboard course, hide all the other buttons on your course navigation menu (except for Announcements) and make your course available through MySite. This will minimize any confusion for students on which LMS to use for your course (Blackboard or Canvas).
Recommended Announcement Sample To Post In Blackboard