You guys ever see this ad denial reason?
-------------
Your ad will no longer be available for use, as it was declined due to the following policy violations:
Oath EU/EEA non-approved vendor
The impression/click-tracking vendors associated with the creative are NOT OATH EU/EEA-approved.
-------------
I am using
You guys know what I need to fix?
Looks like a GDPR related issue.
You are going to have to make your page and tracking compliant if you are driving traffic from the EU and/or potentially use a tracking vendor from this IAB list https://vendorlist.consensu.org/vendorlist.json read more here https://advertisingconsent.eu/vendors/
OATH also has a resource page here that you should check out
https://www.oath.com/insights/oath-and-gdpr/