This optional function, like the optional replacing function, provides an opportunity for cleanup. For example, you might want to call the end function to free storage obtained from the exit.

The end function is processed when VTAM® is halted (HALT or HALT QUICK) or when you issue a MODIFY EXIT,ID=ISTEXCDM,OPTION=INACT command. If the exit is active when you attempt to halt it with the MODIFY EXIT command, the exit is allowed to complete processing before it is driven for the end function.

For an exit that is being ended, VTAM sets the function code to X'FF', builds a parameter list, and calls the exit to indicate to the exit that it is being ended.

VTAM resets all functions designated by the begin function.