Return codes 0 through 16 describe the QMF processing of the command passed with the command interface. When the command interface returns one of these codes, it also returns the values of the QMF command message variables in the application's ISPF shared pool. The codes are shown in Table 5.
| Value | Explanation |
|---|---|
| 0 | Successful execution |
| 4 | QMF session marked for termination by an EXIT or END command |
| 8 | Execution failed, but error didn't mark the session for termination |
| 16 | Severe error: session marked for termination |
A return code of 4 occurs only on the command that caused the session to be marked for termination. If the application then attempts to run another command, QMF returns another return code value to the user.
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