This error occurs when an enrolment doesn't have marked Yes or No to VET in Schools.
If you receive the following error in the SVTS report, take the following actions:
1. Go to Main Menu then Education select AVETMISS Reports
2. In the NAT file 0120 check for validation issues by selecting on the red number, click on Resolve
3. In the Fix Enrolment pane scroll down and select Yes or No press Save