I really doubt Google Adx would pass buyer_uid to buyers in EU28 countries. They were the first ones to truncate IPs in EU for privacy reasons. We've stopped c

I really doubt Google Adx would pass buyer_uid to buyers in EU28 countries. They were the first ones to truncate IPs in EU for privacy reasons. We've stopped cookie matching in EU28 countries so I can't verify if they do pass the buyer_uid.