- In Campaign Manager Account Admin settings
- In Site Directory under Properties
- In the advertiser’s properties, under Landing Pages
- Next to its associated site name within a Campaign
The correct answer is: Next to its associated site name within a Campaign
Explanation: Campaign Manager sites are the one or more Campaign Manager sites that need to be associated with this advertiser. Please note, only the placements (and creatives) within these sites will be available in Display & Video 360.
Read more here:https://support.google.com/displayvideo/answer/3423704