1. Click Browse/Search
2. Select an offer
3. Click at Your Pixels / Postbacks and Click (Add New Pixels / Postback)
4. Next the message box will pop up to add your global postback information.
5. Select the Code Type (Postback URL) and add the code (must start with http/https)
6. Next Select the additional Optional Variables which is available on the right. For example
In this case we will be using offer ID, Sale amount, Affiliate Sub.
7. Once done Click Create.