DFS1866I SC=04 RDPN=DFLDNAME TRUNCATED TO '`cccccccc`'

Explanation
 The return destination process name (dfldname)
was greater than 8 characters.

System action
 Only the first 8 characters of the dfldname are
used, and processing continues with this operand.

Programmer response
 Provide a dfldname with no more than 8
characters, and rerun the job.