I am wrking on XI 7.0. I have R/s system as a recever and I have to use either Idoc or RFC adapter. I followed this blog and I see that for Idoc Receiver adapter we have to create RFC Destination only in XI. However when I did Idoc to File, I have done RFC Destinations in both R/3 system and XI. Is this an error or do we have create RFC destinations in both R/3 and XI.? Nw if am using RFC adapter at receiver side, then also do I have to create RFC destinatin only in XI or both in XI and R/3?