You can't change your original configuration's language from your default language. However, if you need a configuration in a different language, you can create a new configuration.
To add a language-specific branding configuration
-
Sign in to the Azure portal using a Global administrator account for the directory.
-
Select Azure Active Directory, and then select Company branding, and then select New language.
-
On the Configure company branding page, select your language (for example, French) and then add your translated information, based on the descriptions in the Customize your Azure AD sign-in page section of this article.
-
Select Save.
The Contoso – Company branding page updates to show your new French configuration.
