# Default language

When you create an application, the language you select in the New/Open Machine Edition Application dialog box becomes the default language for the application. Any undefined strings in the application can be shown in the default language rather than as question marks.

When you open an existing application that supports only one language, that language is the default language.

When you open an existing application that supports multiple languages, the language you select to open the application in becomes the application's current language. Once the application is opened, you can change the default language in the Language Configuration dialog box.

When you open an existing application created with RSView Studio Machine Edition 4.00 in FactoryTalk View Studio, if the application supports multiple languages, you are prompted to select a default language for the application.

## See also

Language switching

Change the default language for an application

Select a default language for an RSView ME 4.00 application that supports multiple languages

Show undefined text strings in the default language