When the RACROUTE REQUEST=DEFINE exit routines receive the ACCLVL or the INSTLN parameters, RACF® does not know the format of the parameters. As a result, if automatic direction of application updates is active, RACF does not know what information to propagate. If you want RACF to propagate these parameters, you must have a RACROUTE REQUEST=DEFINE exit, and your exit must specify what information RACF is to propagate. An exit does this by setting fields in the RDXP parameter list. If an exit does not set these fields, by default RACF does not propagate the parameters. For information on these fields, see the description of the RDXP parameter list in z/OS Security Server RACF Data Areas. An exit might also need to recognize when these parameters have already been processed by the exit on another system, and take appropriate action. The RDDFPROP flag in the RACROUTE REQUEST=DEFINE parameter list, RDDFL, indicates whether the DEFINE request was directed from another system.