If you have a course that you would like to delete but are unable to, the course may still have students enrolled.
You will need to remove all students from the course before being able to proceed with deleting.
If you have removed all students from the course and you are still unable to delete, the course may be part of a curriculum. You will need to remove the course from the curriculum before being able to proceed with deleting the course.
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If you need additional assistance, please contact Support.