Thread · 2 tweets · 16 Apr 2019

Agreed, this can't be done briefly, there's just so much! I don't believe this is agency-related, it's when a brand (directly or not) uploads an audience directly. A typical way of doing that is through hashed emails, but it's not the only one.

It's possible that it also has segments generated in other ways, but normally not those that come from Facebook’s online tracking.