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Why we picked it The canonical explanation of what PMax actually optimises (bidding, budget, audiences, creatives, attribution) straight from Google, read this before trusting a blog's interpretation of what the black box is doing.
About Performance Max Campaigns
From Google Ads Help by Google
- Single campaign spans Search, Shopping, YouTube, Display, Gmail, Discover
- Needs sufficient conversion history to optimise well
- Complements, doesn't replace, keyword-based Search campaigns