Hi Arif,
thanks for your reply in my environment GRC system is connected to ERP HR System through RFC only and the RFC is tested and remote logon working properly so means no issue with RFC, what concern i have is if you go to master data Workcenter under NWBC you will find organization if you click it will get complete HR organization structure in my case i am not getting (in my POC sandbox system it was working properly and i was getting HR structure but the installation was as add on not separate server connected through RFC) hope its clear now
thanks