Go to the Spot tab and click Create button:
So let's check the configuration fields:
Spot name - the name of your spot.
Select a traffic source - select an existing traffic source from the list. You need to add and configure it in the Traffic Sources tab, before configuring a campaign.
Domain - you need to select a domain for your track links. To add a domain go to the Setting-Domain and add one.
Campaigns in rotation - the list of campaigns, that will be shown in that spot on the publisher's website.
Cost Model - there are 3 types of cost model:
When all fields are configured, click Next button to go to the next step.