A method for enforcing internationalization uses pre-logging subroutines, i.e., helper methods, to determine whether a high priority debug log message is localized, and reject a string message that is not localized in a user's native language. A localized message may be constructed by passing message keys and parameters to a translation subroutine, which is implemented by a localized messaged factory. As a result, only a localized message may be passed to the helper methods, and the localized message is typically translated into a text string in the user's native language before being passed to a raw logging interface to be logged, thus automatically enforcing internationalization.