When attempting to delete a Session from an Academic Year in Configuration > Academic Years, the Delete button is grayed out when highlighting the Session to be deleted.
In order to delete a session, all scheduling information for that session must be removed:
1. Delete all class sections. 2. Delete all course restrictions applying to that session. 3. Delete all room restrictions for that Academic Year. 4. Delete all Faculty restrictions for that Academic Year. 5. Check saved scheduling scenario which will maintain scheduling information, and will keep a session from being deleted. 6. In Configuration > NetClassroom > Registration Setup, delete any entries for the appropriate Academic Year and Session.
Note: It is recommended to delete each saved scheduling scenario after all scheduling for an academic year is complete.