Here we would like to draw your attention to STMS_FSYS transaction code in SAP. As we know it is being used in the SAP BC-CTS (Change & Transport System in Basis) component which is coming under BC module (BASIS).STMS_FSYS is a transaction code used for Maintain TMS System Lists in SAP.
It comes under the package STMA.
Transaction STMS_FSYS technical data table
|Purpose||Maintain TMS System Lists|