Issue
The Translate all button is greyed out when you are trying to auto-translate any content.
Probable Cause
Auto translation is not supported for the selected language.
Suggested Solution
Whatfix uses Microsoft Machine Translation Services to auto-translate content. To know more about the languages supported by Auto Translation, see Languages supported by Whatfix.
If the language of your choice is not available for auto translation, use the option to Translate content in the UI.