Setting Up User Exits › Command Exit › Where the Exit is Called

Where the Exit is Called

The command exit is called at the following points:

• The first point occurs before any command scan has been done. At this point, the exit can alter the data entered by the user. For example, the exit can alter a PF3 entered in the Menu to be equivalent to a /F signoff command.
• The second point occurs after the input has been validated as a command. At this point, you can impose specialized command authorization.
• Call point 16 of the TPXUCMND exit is entered when a valid command is entered from the Menu. This call point should be considered equivalent to call point 8. Its major function is for the command exit to do any additional validation of the command entered, with the ability to reject the command.