By default, Canvas courses are active for students for a few weeks after a term ends. For a list of term end-dates in Canvas, please consult:
Terms in Canvas
When a Canvas site is active, students can perform actions in the site (for example: post to a discussion).
Once a term ends, a Canvas site enters a read-only state. When this happens, site is visible to students when they enter Canvas, click Courses, and scroll down to past enrollments.
If you are a student, your instructor might decide to change access settings to your course's Canvas site. If it seems that you do not have access to your course's Canvas site before the term end-date, please email email@example.com
so we can investigate further.
If you are a graduating student and have questions about accessing your Canvas site after graduation, please consult: Canvas after Graduation