For each MVS image on which APPC/MVS is started, your installation can define one or more TP profiles for a given TP. These profiles may have different levels (SYSTEM, GROUPID, or USERID), as defined in Creating a TP Profile. By defining RACF® profiles in the RACF APPCTP class, and then permitting access to those RACF profiles, you can control which user IDs may access the APPC/MVS TP profiles and execute the associated TPs.