As an admin, you can reset gradebook integration data for courses in your account in SIS Integration Utilities.
When a Canvas assignment syncs to your institution's SIS gradebook, it is assigned a number that passes from Canvas to your SIS. When the assignment is created in the SIS, it receives the same number. This means that subsequent grade syncs can include student grade updates without requiring the assignment to be re-created as a new assignment in the SIS. When you reset the grade integration data, this assigned number is removed from the gradebook integration data that is passed from Canvas to the SIS. Without the assigned number, the Canvas data is interpreted as a new assignment, which triggers the creation of a new assignment in the SIS gradebook.
Unlike a typical SIS grade sync, when you reset grade integration data, you cannot select or deselect assignments to include.
Note: To reset integration data for a course, you must know the course ID. To find a course ID, you can open a course and view the URL. The course ID is the set of numbers after https://...courses/. Alternatively, you can view the course URL by hovering your cursor over the course name link in the Courses page.