How long a student has been with your studio - Years of Membership

Currently the Years of Membership report or the student by start date report , reports on when the family/student has created their profile in the portal not when they actually commenced. We give service years trophies and there is no way to tell exactly when a student has started with you unless you go into their transactions individually and check when the first transaction was made. It would be great for the Years of membership to take the date that the famly/student first enrolled.