Here we would like to draw your attention to SM02 transaction code in SAP. As we know it is being used in the SAP BC-CST (Client/Server Technology in Basis) component which is coming under BC module (BASIS).SM02 is a transaction code used for System Messages in SAP.
It comes under the package STSK.When we execute this transaction code, SAPMSEM1 is the normal standard SAP program that is being executed in background.
SAP SM02 menu path
See the possible menu paths to access the same report by avoiding entering the transaction code.
Tools → Administration → Administration → System Messages
Transaction SM02 technical data table