The help page now covers the Data Manager, AI Max for Search, Demand Gen, Smart Bidding and Performance Max.
Signals it recommends sending:
hashed emails and phone numbers
IP addresses
transaction IDs
GCLID
session attributes with GBRAID and WBRAID parameters
Google's own numbers, not independent results:
Google Tag Gateway: 14% more conversions, up to 7% lower CPA
Enhanced Conversions in Search: 8% incremental ROAS
Smart Bidding Exploration: 27% more unique converting users
Customer Match lists: 5.3% conversion uplift
Spotted by Barry Schwartz, via PPC News Feed.
