Here we would like to draw your attention to WDK_APPL_REG transaction code in SAP. As we know it is being used in the SAP BC-MUS (Musing Tools in BC) component which is coming under BC module (BASIS).WDK_APPL_REG is a transaction code used for WDK application registration in SAP.
It comes under the package WDK_CONTROLLER.When we execute this transaction code, WDK_TABLES_MAINTAIN is the normal standard SAP program that is being executed in background.
Transaction WDK_APPL_REG technical data table
|Purpose||WDK application registration|