IDC3607I DELETE UNSUCCESSFUL - NOT A TEMPORARY DATA SET

Explanation
The deletion that was to be attempted was not performed.
A duplicate name was found in the catalog, and the temporary export
flag was not on for the duplicate data set or the data set was not
empty.

System action
The command is ended.

System programmer response
  If the error recurs and the program
is not in error, 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.

Programmer response
Change the name, or delete the duplicate
cluster if you mean to replace it.

Source
DFSMSdfp

Module
IDCMP01