Oracle Message KUP-04023 - field start is after end of record

ERRORfield start is after end of record
CAUSEThis can happen when specifying either absolute or relative positioning for a field.
ACTIONVerify that the definition of the layout of fields in the data file is correct. If it is valid for fields at the end of the record to be missing, use the MISSING FIELD VALUES ARE NULL clause in the access parameters.