When the CICS® global user exit XPCFTCH is used to intercept an Enterprise PL/I routine by providing an alternate entry point, CICS uses the address returned in ceecics_ruentry_real if it is available. It is supplied to XPCFTCH as the new PCUE_REAL_ENTRY parameter. You can also provide a MAIN that conforms to Language Environment with the hexadecimal value x'47F0F014' followed by x'01'CEE, DSASIZE, and the offset to the PPA1. Refer to the common interfaces and conventions information in z/OS Language Environment Vendor Interfaces for details about routine layout.