SIS connections
Choosing a campus on a district-wide connection
If your credential can see a whole district, choose your school before pulling. Otherwise several schools' timetables are merged into one version, which shows up as impossible period counts, duplicated course names, or far too many students.
Use Find my school on the connection form to list the campuses the credential can see. OneRoster systems scope by school; PowerSchool and Aeries use a school code. Leaving it blank pulls the whole feed.