Auto-Enroll is for any sessions where there is no cost involved and it is included with the Membership or another session purchase. When this setting is turned on the member will be automatically enrolled into this session when their Membership enrollment or session enrollment is submitted.
The Membership Auto Enrollment is based off of the Site and School Year that were selected for this Program. Only Members enrolled in that School Year and that are from that Site will be Auto Enrolled in this Session.
The Session Auto Enrollment is based off the other session you selected in the setup. Only Members that enrolled in that other session will be Auto Enrolled into this session.