A request using the JES Subsystem interface has failed. The only functions issued by MFA are FUNC=79 (SYSOUT API) or FUNC=80 (Extended Status API). Return codes and reason codes are described in the IBM publication: Using the Subsystem Interface (SC28-1879) A partial list is provided below:
| RC | Description |
|---|---|
| 04 | Function not supported |
| 08 | JES not available |
| 12 | JES does not exist |
| 16 | Fatal error |
| 20 | Logic error |
| 24 | SSI not initialized |