Presence or absence of 'DUPLICATES' phrase for file %1 does not match attributes of copied file.
10
Cause . . . . . : Either the file on which you are performing a format 2 COPY is defined with the UNIQUE keyword and the COBOL SELECT statement specifies the 'DUPLICATES' phrase, or the file is not defined with the UNIQUE keyword and the COBOL select statement does not specify the 'DUPLICATES' phrase. Opening this file will result in a file status 95 unless the file is recreated properly or overridden before running the program. Performing I/O on a file which was opened with a file status 95 can produce unpredictable results.
Recovery . . . : Change either the DDS file or the SELECT statement in the COBOL program to ensure that they correspond with respect to the duplicates attribute.