Set the default language for an instance
Change the language that appears by default for an instance.
始める前に
Activate the languages that your users need. For more information, see Activate a language for supported languages or Translating to an unsupported language for custom translations.
Role required: admin
このタスクについて
This property defines the language that users with a role see if a language is not specified in their user record. Users without a role see the default guest language, as described in User specific language.