Here we would like to draw your attention to SUPO_PREPARE transaction code in SAP. As we know it is being used in the SAP BC-SEC (Security in Basis) component which is coming under BC module (BASIS).SUPO_PREPARE is a transaction code used for Maintain Organizational Levels in SAP.
It comes under the package S_PROFGEN.
Transaction SUPO_PREPARE technical data table
|Purpose||Maintain Organizational Levels|