Hi Vishnu,
Program RH_SFI_TRIGGER_EMPL_DATA_REPL only supports file based integration with SuccessFactors - it is used to trigger generation of a file with employee data extract, which is then uploaded to SuccessFactors.
If you would like to benefit from using PI system for this integration scenario, it is recommended to use program RH_SFI_SYNCHRONIZE_EMPL_DATA instead of RH_SFI_TRIGGER_EMPL_DATA_REPL. RH_SFI_SYNCHRONIZE_EMPL_DATA supports transmission of employee data both using files and using PI (option "Middleware" on its selection screen) - when using an option for middleware based integration with SuccessFactors, RH_SFI_SYNCHRONIZE_EMPL_DATA will use outbound proxy service interface for sending data to PI, thus you will need a proxy (SOAP-XI) sender communication channel in your PI system for this integration.
Please note that you should not execute both these programs - only one of them should be chosen and used.
Regards,
Vadim