Search your students to find the ones without a Parent Portal Account linked to their record in PowerSchool. GuardianAccessAssigned = False
This gives you a list of contacts linked to your students who have an Public Portal (Access) account.
Note: You may notice some contacts that need to be consolidated within the resulting list.
This gives you an idea of how many are actually using the portal.
Access this short video to help parents/students learn how to access the PowerSchool Mobile App for Parents And Students.