Third-Party Audiences allow highly specific targeting (or anti-targeting) contextually, by demographics, by behavioral characteristics and more. In the ‘Audiences’ tab under ‘Third Party’ you can search through the thousands of segments available by category, type, and provider.

Most Third-Party Audiences have an additional cost CPM to target the data. The CPM for each Third-Party Audience can be seen in the right-most column of the list of Third-Party segments. When you associate Audiences to a Campaign or Line Item, add the cost of the most expensive segment to the Bid Data. The Data Costs for associated segments will be included in the all-in media spend for each Campaign or Line Item.

For more information, refer to the following documentation: Third Party Audiences