Here we would like to draw your attention to WDYID transaction code in SAP. As we know it is being used in the SAP BC-WD (Web Dynpro in Basis) component which is coming under BC module (BASIS).WDYID is a transaction code used for Display Web Dynpro Application in SAP.
It comes under the package SWDP_PRGN_NODES.When we execute this transaction code, SAPLWDY_PRGN_NODES is the normal standard SAP program that is being executed in background.
Transaction WDYID technical data table
|Purpose||Display Web Dynpro Application|