Error codes for dynamic output

Dynamic output errors do not produce messages. The return code contains:

The dynamic output return code (S99ERROR) in the high two bytes
The information code (S99INFO) in the low two bytes

You can use the high four hexadecimal digits to look up the error code in the dynamic output return codes table found in the z/OS MVS Programming: Authorized Assembler Services Guide. You can use the low four digits to look up the information code.

There is no indication of the key that is in error.

Some of the most common reason codes are as follows:

300-30C, 312, 380: The arguments may be specified incorrectly.
401: The output descriptor already exists.
402: The output descriptor does not exist.
403: Output descriptors created by JCL cannot be deleted by dynamic output.