In a big change, Google enables cross-device remarketing for signed-in users.
Soon advertisers will be able to reach users across devices with Google remarketing campaigns.
This is a significant development, as Google has not previously supported cross-device retargeting. For example, currently, if a user comes to an advertiser’s site on a mobile phone, the advertiser is not able to retarget that user later on a desktop, unless they also visit the site on desktop. If that happens, the user is effectively listed twice, and the frequency capping and negative list exclusion is set at the browser or mobile ID level on each device. Read full article on Marketing Land