Performance Max arrived into the Google ecosystem with considerable promise. A single campaign type that could run across all of Google’s channels – Search, Shopping, Display, YouTube, Gmail, and Discover – with minimal setup and artificial intelligence (AI) handling the heavy lifting. For time-pressed marketers managing complex accounts, the appeal was obvious.
The reality has been more complicated. Many advertisers who followed Google’s recommendations and handed over the reins found themselves with strong-looking conversion numbers that didn’t translate into actual business results. Others found it worked exceptionally well – but only in specific circumstances.
Understanding which camp you’re likely to fall into before you launch is what this guide is all about.
In this article, you’ll learn:
- What is Performance Max?
- How does Performance Max work?
- Where Performance Max works well
- Where Performance Max underperforms
- What you actually control in Performance Max
- Before you launch: a practical checklist
- Is Performance Max right for you?
What is Performance Max?
Performance Max – commonly shortened to PMax – is a Google Ads campaign type that uses AI and machine learning to serve ads across all of Google’s advertising inventory from a single campaign. Rather than building separate campaigns for search, shopping, display, and video, you provide Google with a set of assets – headlines, descriptions, images, videos, and audience signals – and the system uses automation to decide where and how to show your ads to maximize conversions or conversion value.
It was introduced in 2021 and became the default campaign type for Google Shopping in 2022, replacing Smart Shopping campaigns. Since then, it has expanded to cover broader advertising objectives, and Google has pushed it heavily as the future of campaign management.