Criteo’s Audience API allows you to create and manage Audiences and Audience Segments.Audiences are built up of Audience Segments, which are groupings of users from either Criteo-powered data, lookalike models, or an advertiser’s own data. Audiences can then be linked to one or more Ad Sets once built. Once linked, Audiences drive to whom the Ad Set should deliver (e.g. people interested in shoes).
Create audience segments to define the people to target
If you want to create one or more audience segments to target people based on their shopping intent, location, and similarity to your existing website visitors.
Estimate the size of a non-existing audience or audience segment
If you want to estimate the size of an audience or audience segment before creating it, in order to configure it to target the number of users you desire.