IIUD1006W DUPLICATE `member name` IN LIBRARY DDNAME `ddname`

Explanation
 IIUUDIAG found a duplicated member in the concatenated
libraries.

System action
 IIUUDIAG uses the member that is first found
in the concatenated libraries. IIUUDIAG sets an end-of-job return
code of 4 and continues processing.

User response
 Make sure which libraries have correct module/macro
libraries. Correct the error, and rerun the job if necessary.