# Tailoring Templates and User Exits

The templates delivered under the folder `$SPLEBASE/templates` can be overridden by the application by creating a copy of the template file with the same name but prefixed by `cm.`. The `cm` copy will be customized.

Since the templates can contain user exits (special statements that allow to import external files during the template processing). Those user exits can be overridden by creating a copy of the user exit file with the same name but prefixed by `cm_`. The `cm` copy will be customized.

Parent topic: Preserving Customer Changes