Inventory Discovery allows you to target available inventory based on dimensions.
To add targeting based on dimensions:
1. Click Marketplace Discovery.
2. Navigate to "Filter Inventory" to the right of the interface and select any of the following dimensions:
|User geography||All targetable regions. Search for a region in the search box at the top or browse through them all.|
|Languages||All targetable languages.|
|Ad position||Choose whether you'd like your results to be limited to Above the fold or Below the fold.|
|User lists||All available user lists associated with your account. To learn more, see Inventory Discovery: Advanced queries.|
|Brand safety exclusions||Site categories the Authorized Buyers blocks by default for new campaigns. Learn more about how to Exclude sensitive or mature topics in your campaigns.|
|Inventory formats||By default, image ad inventory is shown. Check Flash or HTML5 to include these types as well.|
|Creative sizes||Select a few ad sizes to limit the inventory results. See all supported sizes in the Authorized Buyers.|
|Page verticals||Detected page content categories, as passed by
|Deals||Select one or more Preferred Deals or Private Auctions to see an inventory estimate made available by these deals. To learn more, see Inventory Discovery: Advanced queries.|
|Devices||Narrow your results to specific device platforms: Desktop, Tablet, or Mobile.|
|Demographics||Narrow your results to the demographic groups you'd like to reach, with both age and gender categories.|
|Video context||Choose from a variety of video targeting criteria:
Placement: Preroll, Midroll or Postroll.
Platform: Whether the video appears on a Game or a Mobile interstitial, for example.
|Video format||Duration: Choose the length of the ad slot.
Format: Whether the video player accepts HTML5, FLash or neither.
VPAID: Whether the ad slot is VPAID compatible.