The client provides the system integrator with translation messages for the newly added "French" ("fr")...

In Salesforce Commerce Cloud, the proper storage location for translation files for specific locales follows a structured directory path to ensure that the system correctly recognizes and applies the translations. The correct path for storing locale-specific translation messages, such as for the French locale, is under cartridge/templates/resources/fr. This structure allows the platform to efficiently load the appropriate resources based on the locale settings, ensuring that the correct translations are displayed for each supported locale.