An advertiser is participating in a bidding environment where a publisher has established a floor price and restricted the auction to a select group of invited participants. Which transaction type are they using?

This setup matches a private auction , which Display & Video 360 defines as a non-guaranteed auction where the seller invites specific buyers to participate. The publisher can require bids to clear a minimum CPM , so the floor price is part of the transaction mechanics. The highest eligible bid wins only if it is above that floor. That combination of invited access and a publisher-set floor is the defining pattern of a private auction . Google Help