Subscription is used to indicate that children should be visible in the Tracker module. In kindergartens, all children will normally have subscription. At schools, membership will only be placed on students who attend After School Activity. Several different subscription can be created to distinguish between full day, half day, etc. At least one subscription must be created in the system for the Tracker module to work.
Membership is registered on the student on the profile page:
If a student does not appear in the student list, this is often because one has not set subscription on the student.