First, go to Sites and find the site you created earlier:
Click on the + Ad Unit button on the right side of the page to open a new pop-up window:
In this window, you can enter a name and title for your Ad Unit and customize its settings, such as the ad thumbnail image, color, margins, and currency.
Please note, the margin should be the percentage of revenue that you will keep for yourself from us (e.g 30%), and the exchange rate should be the redeem rate of your platform (in other words, how many coins/points a user needs to collect to redeem $1). In that way, our system will calculate the reward to the user in a right way and send it through the postback correctly.
If you want to test your ad unit in a sandbox environment, make sure to turn on the switch in the bottom-right corner.
When you’re finished setting up your ad unit, click the Save button in the bottom-right corner.
You’ve successfully created your first ad unit. To learn more about testing your new ad unit, refer to this document.