FLDCHG can not be used on this input record
FLDCHG uses a field’s offset and length to access a record’s raw data stream to determine if a field has changed. For this reason, FLDCHG can only be used on record that have a deterministic offset for the data of each column, like IMS or VSAM records. Consider using the function CDCBEFORE instead. This message will only be produced if FLDCHG is trying to process an update. By definition, inserts and deletes will always return true.