Checking to see if there is any more work to be done. This is usually the last message you will see and indicates that the return code was nonzero. The various possibilities for the return code are:

0

Successful completion - request went to the subsystem.

4

Subsystem does not support this function. This is the one that is expected when there is no more work to do.

8

Subsystem exists, but is not up.

12

Subsystem does not exist.

16

Function not completed - irrecoverable error.

20

Logical error (for example, incorrect SSOB format, length.)