Google drew a line in the sand on March 3rd, when it said it wouldn’t build or support cross-site identifiers. But single-site identifiers, specific to an individual publisher, are fair game – and something Google wants to encourage.
To that end, Google is dusting off an old/new ID type: the publisher provided identifier (PPID) in Google Ad Manager.
The PPID has been around for years, but until now was only used for direct deals. With third-party cookies going away and…
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