What to do after you've installed a script

 

Start by setting up an advertising campaign:
In the main menu, click on "My campaigns", then click the "+ Add a campaign" button. Fill in the general fields for adding a campaign, save, then click on "Add an ad", located below the name of your new campaign.

A quicker way to add an ad: set up a text ad, because they automatically fit all display zones (with text ads, you don't need to specify ad size).