Exchange Category Targeting
Exchange Category targeting enables the inclusion or exclusion of particular content categories that are available on the Zeta (RFI), ADX, and AppNexus Ad Exchanges.
1. Within the Targeting tab of the Campaign Builder, the Targeting grid appears. Click on the 
sign against each row or object to add in its targeting rules.
.gif?inst-v=999889d1-e4fb-4da8-a483-a166ff71fd9f)
2. Select Exchange Categories.
3. Select whether to Include the Categories selected, or to Exclude everything except the Exchange Categories selected.
4. Upon selecting the Exchange Categories you wish to target on RFI (Zeta), ADX, or APN (AppNexus), click on the [>] to add them to the column on the right.
.gif?inst-v=999889d1-e4fb-4da8-a483-a166ff71fd9f)
5. Repeat this process until you have added all the desired Categories.
6. Click on Save & Close when complete.
Find Categories by entering letters from their name into the search bar or by selecting them from the list.
To add a category, click on its name. To remove a Category, click on the X beside its name in the Selected list.