Internet users are aggregated by ad exchanges (or “traffic sources”) from their origin (publisher) sites. These aggregated groups of users represent a potential audience for advertisers to target their campaigns to.

Zeustrak users target this traffic – the “audience” – and push offers to them via their campaign (URL) to gain conversions. An example of a traffic source is Facebook.

The addition of a traffic source template enables an advertiser to label each campaign based on
the specific target source, along with any additional traffic (variable) data that can be sent.

Go to traffic source setup

Read further: "1.2 Affiliate Network"