post https://api.northpass.com/v2/people//relationships/courses
Add existing courses to an existing person.
Depending on the type it will either enroll a person to a course (enrolled-courses) or add the course to the list of managed courses (managed-courses).
This will associate the person with any courses they are not currently associated with and ignore any courses that the person is already associated with. You do not have to include any courses that the person is already associated with, as this will not remove any current associations.