Trafficking Google ads (through Google’s AdSense program) is not the most straightforward thing to do, regardless if you use Google ads for your remnant inventory or as normal priority ads.
– create a new order (for your in-house advertiser, for example);
– create, one by one, ads for each format and/or AdSense channel you will be using;
– set delivery to ‘time-based bulk’ and priority to ‘default’, which would be the appropriate one in most cases of remnant inventory;
Of course, you would first need to think of the structure and different channels you would like to use in order to distinguish between different content categories and ad slots, and create them in the AdSense account. After you generate the ad code and adapt it to be trafficked in DFP, it should look like this:
In case you are using the ‘allowed sites’ feature in your AdSense account (you should, really), do not forget to ad dfp.doubleclick.com in the list.
If your experience differ or have any suggestions to share, please leave a comment – discussions are always welcome.