http://forums.sdn.sap.com/thread.jspa?messageID=4057356

Follow these steps:
1. Goto RSPC Transaction code--> create start varient-->Cclick on Process types Icon( cahin symbol)--->goto "general services"-->Click on ABAP Program--Enter Program varient("R/3 Job having program name") -->enter.

Connect this process type to start Varient-->maitain varient-->activate-->schedule.

** Program name of ur job u can find very below the screen**

You can create a job in R/3 to be triggered "After Event". Then in your process chain, you create an ABAP process:
Call mode: Asynchronous
Called From: Destination (your R/3 system)
Scheduled Program: (put in R/3 event name)

The trick is that in R/3, you will need to create an ABAP program that executes function module RSPC_ABAP_FINISH (with parm of the name of the ABAP process in the process chain). This signals the process chain, that the ABAP process is complete (for Asynchronous ABAP processes, the process chain will wait for user intervention before going to the next step in the process chain). When you save the ABAP process in the process chain, you will receive a warning saying that you must call the RSPC_ABAP_FINISH function module to tell process chain that the ABAP process finished.
。。。。。。