EDG_EXIT200 exit routines run in PROBLEM KEY, SUPERVISOR STATE AMODE(31) RMODE(ANY) in the address space of the DFSMSrmm started procedure. Exit modules can be contained in any APF authorized LNKLST library or an APF authorized library named on CSVDYNEX macro invocation.

You can write your exit module to issue commands or call other programs to get external inventories updated.