Vrbo will inform you which language is compulsory. It is the language of the Vrbo site you are listed. If this language is different from the language you use as default language for your booking page you can set it in {{#fas:cog}} (SETTINGS) CHANNEL MANAGER > VRBO > SPECIFIC CONTENT.
If you need to activate languages go to {{#fas:cog}} (SETTINGS) BOOKING ENGINE > INTERNATIONALISATION. help<span style="color:#019cde;“ >{{#far:question-circle}} </span> on the top right of this page for information how to set languages and how to use multiple languages.
=== Listings ===