The Record-Addition entry (positions 16-18) of ADD is not valid for a file which has a blank specified in the File-Addition entry (position 66 on File Description Specification), and the Record-Addition entry of DEL is not valid for a file which does not have a U in the File-Type entry (position 15 on File Description Specification). The Record-Addition entry defaults to blanks.
Specify blanks in the Record-Addition entry, or specify A in the File-Addition entry on the File Description Specification when the Record-Addition entry is ADD, or specify U in the File-Type entry on the File Description Specification when the Record-Addition entry is DEL.
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