Campaign URL is the destination URL of the campaign you are promoting. You can append your campaign URL with URL variables.
Avazu Mobile DSP will substitute URL variables listed in this page with corresponding values. Insert the URL variables into your campaign URL to pass information about a clicking user back to your tracking system.
You can also set landing page URL for each of your creatives.
If you put Click through URL for the creative, this creative will be direct to the Click through URL instead of the Campaign URL.
If you disable Click Through URL, then creative will be direct to campaign URL.