- Advertiser user
- Agency user
- Advertiser manager
- Agency manager
The correct answers are: Agency manager and Advertiser manager
Explanation: Before you can use the conversion API or attribute offline conversions to a Google click ID, a Search Ads 360 user with agency manager or advertiser manager access needs to sign in to Search Ads 360 and activate the conversion API for the advertiser. If no one in your organization has agency manager or advertiser manager access, contact customer support, who can enable the conversion API for you.
Read more here: https://support.google.com/searchads/answer/2604604