Hi Venkat,
The scenario you are running seems to confuse me. The message you have received is a right one, you would get the Message no. /SAPSLL/CORE_PARTNER402 if you haven't had a successful transfer of BP in GTS which in this case happens to be your FTO.
The path you are using which I think is Distribute FTO to Downstream systems is generally used, if you don't want to re-create the organizational units in each of the systems (that is in QA and Production once more). In your scenario, you have mentioned that you are trying to distribute from GTS production to R/3 production, this doesn't make sense to me. You may have to provide more details as to what you are trying to accomplish. GTS organization units are more like master data as compared to R/3 or ECC data, so you would use distribute FTO and LU functionality to send them to other systems (like QA and Prod) rather than re-creating them. Under what scenario would you need the FTO in R/3? Why are you distributing it to R/3?
Thanks,
Shrini