Google Performance Max

Performance Max is Google's automated campaign type that uses all Google inventory (Search, Shopping, Display, YouTube, Discover) from one campaign. The algorithm decides where to show, who to show to, and what creative combinations to use. Powerful but opaque.

How it works

You provide: conversion goal, budget, asset groups (headlines, images, videos, descriptions), audience signals (optional). Pmax does the rest.

When Pmax wins

• E-commerce with a product feed (Shopping + others)
• Mature advertisers with rich first-party data
• Broad consumer audiences
• Accounts with good conversion tracking

When Pmax doesn't work

• Low conversion volume (algo can't optimize)
• Niche B2B or complex positioning
• Brand-sensitive advertisers (you have less control over placements)
• When you need granular attribution

The controls you have

• Conversion goal
• Budget
• Asset groups (creative)
• Audience signals (hints, not hard targeting)
• Account-level exclusions

What you don't control

• Which placements your ads show on
• Which keywords trigger ads
• How budget splits across inventory types
• Creative combinations

The Pmax + Search combination

Running Pmax + a separate Search campaign is common. Search handles explicit brand/high-intent queries; Pmax handles discovery and Shopping. The two coordinate via Google's system.

Common Pmax mistakes

• Low asset variety (Google needs lots of creative combinations)
• No negative keywords at account level
• Starting before conversion tracking is solid
• Treating it like set-and-forget (it still needs iteration)