Add new users to your course - Canvas
Make sure your logged into Canvas and select the course you want to add uses into. Note: You will not be able to add a user in a "Student" role in official course that was created with our Student Information System. You can add users with one of many other roles. You can see descriptions of the available roles on the Canvas - Course Level Roles Description KB article.
For adding any other role below are directions:
Choose the “People” tool in the course navigation
Choose the “+People” button
Add the instructors email addresses
Choose "Next"
On the next dialogue box confirm the names of the people you want to add
Select the "Role" you would like them to have
Choose the “add users” button (this is easy to miss if you do not click this button your users will not get added into the course)