What is Performance Max?

Performance Max is Google's automated campaign type that runs your ads across every Google surface — Search, Shopping, YouTube, Display, Gmail, Maps — from one campaign, with machine learning deciding placement, bidding, and audience.

It can perform well, but it's only as good as the conversion data feeding it: with weak tracking it happily optimizes toward cheap, low-quality actions and grades its own homework in reporting.

Treat it as a component, not a strategy — pair it with dedicated search campaigns for your money keywords, feed it real conversion values (ideally from your CRM), and audit where its spend actually lands.