Modifying the Standard

You should only modify the standard SAP software if your requirements cannot be fulfilled by means of Customizing, personalization, by exits, or Business Add-Ins provided in the system. Before making modifications to the standard software, see the relevant section of the documentation of the Modification Assistant.

The SAP Software Change Registration (SSCR) Procedure is used for registering all modifications to SAP source code and SAP Dictionary objects.

You should also consult the sections General Development Organization and Notes on Modifying the Standard before modifying the standard system.