Here we would like to draw your attention to SBCS_USFD transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).SBCS_USFD is a transaction code used for BCS: Create Private Root Maps in SAP.
It comes under the package SBCOMS.When we execute this transaction code, RSSOUSFD is the normal standard SAP program that is being executed in background.
Transaction SBCS_USFD technical data table
|Purpose||BCS: Create Private Root Maps|