EB927 DDNAME `aaaaaaaa` NOT FOUND. COMMAND NOT EXECUTED.

Explanation
A ddname was entered that was not found in the OBTAIN JCL or CLIST. 

System action
Processing continues with the next command. 

User response
Resubmit the command with a ddname found in the JCL or CLIST. Or, revise the JCL or CLIST to include the desired ddname, then resubmit the command.   