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Performance Max Explained: How It Works & How to Set It Up

What PMax is, the asset groups and audience signals that drive it, when it fits your account, and the 2026 controls that finally make it manageable.

VDBy Vikas Disale·9 min read
Quick answer

Performance Max is a single goal-driven campaign that runs across all of Google — Search, Shopping, YouTube, Display, Discover, Gmail and Maps. You provide asset groups (creative), a product feed, audience signals and a conversion goal; Google’s AI handles placement and bidding. It needs strong conversion tracking and around 30+ conversions a month. Crucially, audience signals guide the AI — they don’t restrict who sees your ads.

📢
2026 updatePerformance Max finally has real controls: campaign-level negative keywords (up to 10,000), brand exclusions, and channel- and asset-level reporting. It’s no longer a black box — but that means active management at the asset-group level is now expected, not optional.
1What it is

One campaign across all of Google

Performance Max (PMax) is a single, goal-driven campaign that runs across every Google surface at once — Search, Shopping, YouTube, Display, Discover, Gmail and Maps. You supply the goal, creative and data; Google’s AI decides which channel, which user and what bid for each opportunity.

It replaced Smart Shopping and Local campaigns back in 2022, and now drives a large share of all Google Ads conversions. The trade-off is control: you’re not choosing placements or bids anymore — you’re programming the system with good inputs.

Free tool

Asset group readiness check

Performance Max only performs as well as the material you feed it. Tick what your asset group has and see what’s missing.

Asset readiness
0 / 9
2The building blocks

Asset groups, signals and themes

BlockWhat it is
Asset groupsCollections of creative (headlines, descriptions, images, video) Google assembles per placement — think of them as PMax’s ad groups
Listing groupsSegments of your product feed (for ecommerce)
Audience signalsHints about who your good customers are
Search themesUp to 50 keyword-style themes per asset group, guiding the Search side
💡
Audience signals are hints, not restrictionsThis is the single most misunderstood part of PMax. An audience signal teaches the AI who a good customer looks like so it can find more like them — it does not limit who sees your ads. That’s why adding several diverse signals helps rather than narrows.
3When to use it

Powerful, but not for every account

PMax fits when you have solid conversion tracking, roughly 30+ conversions a month, you want reach beyond Search, and you’re comfortable trading control for automation. It struggles when budgets are tiny, tracking is shaky, or you need keyword-level control over strategic terms.

Many advertisers run it alongside Standard Shopping or Search rather than instead of them — PMax for reach and discovery, the others for precise control.

⚠️
Protect your brand trafficWithout brand exclusions, PMax can soak up your own-name searches and report them as wins, flattering your numbers. Add brand exclusions so you measure real, incremental performance.
4Setup best practices

Give the algorithm good instructions

  • 3–7 asset groups per campaign — enough to segment by theme or profitability, few enough that each gets real data.
  • Group by category or margin, not by audience. Don’t duplicate asset groups just to attach different signals.
  • Upload your own video. If you don’t, Google auto-generates one — and self-made videos usually outperform it.
  • Feed-only vs all-assets: a feed-only asset group (no creative) tends to drive efficient sales via Shopping; a full asset group drives broader engagement across channels.
  • Feed it 20–30+ conversions a month so it can actually learn.
Key takeaways
  1. PMax is one campaign running across every Google surface, driven by AI.
  2. You supply asset groups, a product feed, audience signals and a goal; Google does the rest.
  3. Audience signals guide the AI toward good customers — they don’t restrict reach.
  4. It needs solid conversion tracking and roughly 30+ conversions a month to learn.
  5. Use 3–7 asset groups, add brand exclusions, and upload your own video.
?Frequently asked

Performance Max FAQs

What is Performance Max?
A single goal-driven Google Ads campaign that runs across Search, Shopping, YouTube, Display, Discover, Gmail and Maps, using AI to choose placements, audiences and bids from the assets and signals you provide.
What are asset groups in Performance Max?
Collections of creative — headlines, descriptions, images and video — that Google’s AI assembles into ads for each placement. They are the PMax equivalent of ad groups.
Do audience signals restrict who sees my ads?
No. Audience signals guide the AI toward people who look like your good customers, but they don’t limit reach. Adding several diverse signals helps performance rather than narrowing it.
How many conversions does Performance Max need?
Roughly 30 conversions a month, alongside accurate conversion tracking, so the algorithm has enough data to optimise properly.
Should I use Performance Max or Standard Shopping?
Many advertisers use both: Standard Shopping for precise control over high-value products, and Performance Max for maximum reach and discovering new audiences across Google’s surfaces.
Can I use negative keywords in Performance Max?
Yes. Since 2025 you can apply campaign-level negative keywords (up to 10,000), plus brand exclusions, giving far more control than the original black-box version.
→Keep learning

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VD
Vikas Disale
Author · Digital Marketing

Vikas Disale is a digital marketer with around a decade of hands-on experience running and teaching paid search. He builds practical, example-led Google Ads training for business owners and marketers. More about Vikas →

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