Error: Session selection is required for one of the selected units

This page will provide you with the workflow on how to resolve an error regarding session selection upon enrolment

This error message will occur upon enrolling on the sessions' class and group specified in a Scheduled Unit. Check the Session Group and Session Class logic of the Scheduled Unit. If you are using Rapla, refer to the Rapla Knowledge Base. If the issue is just on one Scheduled Unit, you can directly check and edit the necessary error with your Group and Class value coding within Paradigm, see Edit Sessions.