BP created from Employee master picking up Std. BP goruping '0001'

Currently for BP creation (from Employee master PA30) – Std grouping '0001' is determined by the system after running the programme- /SHCM/RH_SYNC_BUPA_EMPL_SINGLE.

Issue - How can I make system to determine the particular BP grouping ('ZEMP' in my case) so that desired BP Number Range & associated Vendor NR are picked up for creation.

Where do I define this?

Currently BP is created with std SAP BP grouping ‘0001’.

Thanks,