DFS1851I SC=04 DEVCHAR SUFFIX '`suffix`' TRUNCATED TO FIRST CHARACTER

Explanation
 More than 1 character was specified on the DEVCHAR=
parameter of the EXEC statement. The message displays up to 8 of the
characters that were present.

System action
 Only the first character is used as the 1 character
suffix for the device characteristics table name.

Programmer response
 Specify a valid single alphanumeric suffix
for the DEVCHAR= parameter on the EXEC statement, and rerun the job.