Here we would like to draw your attention to SBACH05 transaction code in SAP. As we know it is being used in the SAP BC-CUS (Customizing in Basis) component which is coming under BC module (BASIS).SBACH05 is a transaction code used for Extend Application Hierarchy in SAP.
It comes under the package SDFM.
Transaction SBACH05 technical data table
|Purpose||Extend Application Hierarchy|