BJTU281E ROW `row_number`: JOBCLASS MUST ONLY CONTAIN 'A-Z0-9st' SYMBOLS OR BLANK WHEN JOBTYPE IS 'A' OR EMPTY.

Explanation
 JOBCLASS must only contain the characters 'A-Z0-9st'
when JOBTYPE is A or empty, but the JOBCLASS field of row row_number contains
inappropriate characters.

System action
The row is not modified or inserted. The program
ends with RC=12.

User response
Remove invalid characters from JOBCLASS field.