If you receive the following error
1. Go to Main Menu select Parent Subject enter in the Subject Id then Edit
2. Select View on the Subject Unit
3. In the Enrolments pane find the Client by using their Client Id 0542 select View
4. In Core Details select Edit and in Commencing change to 8 - Subject only enrolment / The student is enrolled within a program that is limited to certain subjects and not intended to lead to the award of that program or unit of competency
5. Refresh NAT 120 by going back to Education > Reports > AVETMISS and select the refresh icon