Cross-listing allows you to move section enrollments from individual courses and combine them into one course. This feature is helpful for instructors who teach several sections of the same course and only want to manage course data in one location. Instructors can allow students to view users in other sections or limit them to only view users in the same section. Section names do not change when they are cross-listed; the section is just moved to another course.
Cross-listing should be done while courses are unpublished. Coursework is retained with the course, not with the section enrollments, so if a published course is cross-listed, all cross-listed enrollments will lose any associated assignment submissions and grades.
To cross-list a course, you must know the name of the course or the course ID into which you are cross-listing. However, using a course ID is a better way to confirm you are cross-listing a section into the correct course. You can find the course ID by opening the course and viewing the number at the end of the browser URL (e.g. account.instructure.com/courses/XXXXXX).
Sections can only be in one course at a time. Once a section is cross-listed, you can re-cross-list the section into another course if necessary.
This lesson shows how to manually cross-list a section
Step by Step instructions: