You can invite students to enrol in your class in 3 ways:
Send an invite link — Students click the link to join.
Send an email invite — Students can join from the email or in Classroom.
Share a class code — Students enter the code in Classroom.
If students have trouble with the link or code, you can reset them, or send students an email invite instead.
Note: Students can unenroll themselves from classes. If they unenroll, their grades are removed.