This error typically occurs because the teacher record is missing a Staff Id.
Do not address ANY CERT errors until after the Fall 2 submission (SDEM, SASS, CRSE and SCSE) files have been posted with few to no errors. The probable cause of most CERT errors is due to file extracts that have not yet been posted error-free. The second most likely cause of CERT errors results from data that has not been correctly populated in Aeries.
Every teacher (TCH) record for teachers who taught on Information Day must have a Staff ID populated. Confirm that the Staff ID is linked on the teacher record.