Here we would like to draw your attention to FZC4 transaction code in SAP. As we know it is being used in the SAP FS-CML (Loans Management in FS) component which is coming under FS module (Financial Services). FZC4 is a transaction code used for Maintain Ratings in SAP.
It comes under the package for Customizing Treasury: Loan management (FTLC). When we execute this transaction code, SAPL0Z01 is the normal standard SAP program that is being executed in background. Transaction code FZC4 is included in the SAP component for EA-FINSERV.
Transaction FZC4 technical data table