Summary
Students who withdraw from a course or are dropped by the instructor are placed into an inactive status in the corresponding Canvas course. While in the inactive status they will not appear in the Gradebook (by default), but will appear on the course roster from the People page.
Viewing Inactive Student Course Activity
Follow the steps below to view the activity for inactive students in a course.
Step 1: Click the People link from the course navigation menu.

Step 2: Locate the inactive student and click on their name.

Step 3: The student’s Context Card will load on the right-side of the screen. Click their name again.

Step 4: Locate the menu titled More About This User, click Grades for their grade information or Access Report for a report that shows what content they accessed, the number of times they accessed it, and the last time they accessed it.

To view grade information for inactive students from the Gradebook, read the Canvas Community support article How do I view grades for inactive student enrollments in the Gradebook?