My scenario was R/3-XI-JDBC. While creating the scenario, I figured there are no outbund interfaces listed for the Business System for R/3, though I have imported the IDOC inot IR and created all the required mapping. Hence I was not able to select the IDOC as outbound interface for Receiver Determination.
After we added our SWCV to the tech system in SLD, the issue was resolved. My doubt is if I am creating some 5 more SWCV, do I need to add them all to the R/3 tech system in SLD?