Here we would like to draw your attention to SCU3 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).SCU3 is a transaction code used for Table History in SAP.
It comes under the package STAB.When we execute this transaction code, RSTBHIST is the normal standard SAP program that is being executed in background.
SAP SCU3 menu path
See the possible menu paths to access the same report by avoiding entering the transaction code.
Tools → Customizing → IMG → IMG Logging
Transaction SCU3 technical data table