M204.2854
M204.2854 Attempt to do operation for EXACTLY-ONE field: fieldname
The operation shown by operation in the message was attempted for the fieldname field which has the EXACTLY-ONE attribute. That operation is not allowed for EXACTLY-ONE fields. For example, the Add statement is not allowed for an EXACTLY-ONE field.
Message attributes:
| RETCODEO=0 | Sets online return code | 
|---|---|
| RETCODEB=4 | Sets batch (single user) return code | 
| CLASS=E | Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter | 
| AUDITER | Writes the message with line type ER to the audit trail | 
| CANCEL | Cancels the user's request | 
| COUNT | Increments the error count (ERCNT) parameter |