Representative listings on Vrbo means that you have multiple similar units and all of them work with the same rate and the total availability of the listing is the sum of the calendars of all the units.

Vrbo is compatible with this kind of listing, so just set up your structure on and enable their sending from the Channel Manager > Vrbo API > Configuration tab menu, checking the Grouped option on the fields of your choice.

For listings of this type, Vrbo has some content restrictions, so before proceeding the registration this way, it is important to check if you meet the requirements.
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Now that you already know how to market your listings as Room Categories on Vrbo, how about checking out other related subjects?