SYSTEM_FAILURE error after executing RFC for Sender RFC Scenario

Hi ,

I have configured a scenario where my sender is R3 System , data is sent via executing the RFC (BAPI) ........

I have configured the TCP type RFC destination and also maintained a unique program ID ...... i am able to see the program ID as registered service in SMGW.....

while executing the RFC i specify the RFC destination configured as the RFC target Sys...but when i execute ..i get a "<b>SYSTEM_FAILURE</b>" exception....

Please suggest some solution.

Thanks ,

Sushil