If MASK parameter was specified on a DELETE command, you cannot specify the TYPE parameters of TRUENAME, NVR, VVR, LIBENT, VOLENT and PDSE member data set in the same command. The DELETE MASK command does not support these types of data sets.
The DELETE command failed to proceed. A return code of 12 was issued.
If the error recurs and the program is not in error, look at the messages in the job log for more information. Search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM® Support Center. Provide the JCL and the SYSOUT output for the job.
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IDCDL02