A type of inventory that is unreserved, has auction-based pricing and incorporates a one seller-to-few buyers type of participation. Other terms used in the market to describe Invitation-Only Auction digital media inventory are: Private Marketplace, Private Auction, Closed Auction and Private Access. Prioritization in the ad server, the Deal ID, Data usage, Transparency to buyer and pricing floors are other things to consider as an impact to Invitation-Only Auction Digital Media Inventory.