- Campaign Manager Site ID
- Remarketing Value
- Display & Video 360 Line Item Id
- Custom value
The correct answer is: Custom value
Explanation: Add the data pass column After following the general feed instructions, make sure to add a column for the data that will be passed from the publisher (e.g. user_segment, travel_destination, etc.).
Read more here: https://support.google.com/richmedia/answer/3415168