# What is PMAX – Performance Max?

What is PMAX – Performance Max? A Google campaign type automatically distributed across all channels (Search, Shopping, YouTube, Gmail) by AI.

## How it works in practice

PMAX is like an autopilot — great if the road is clear. Without conversion history and quality assets, the AI doesn't know where to drive.

## Related metrics

- Google Shopping — PMAX includes Shopping
- Audience Signals — the fuel of PMAX
- Product Feed — PMAX relies on the Merchant Center feed
- Smart Bidding — PMAX runs on Target ROAS/CPA

## Common misconception

'PMAX is transparent.' Not true — Google doesn't reveal full segmentation. It's a black box. Combine it with manual campaigns (Brand, separate Shopping).

## How to fix it

PMAX not delivering results? (1) Asset Group — at least 3 images, 3 headlines, logo, video, (2) Audience Signals from customers + site visitors, (3) wait 4-6 weeks before drawing conclusions.

## Real-world example

A home goods store: generic Asset Groups gave a ROAS of 1.9. Splitting into 3 separate groups (kitchen/bedroom/garden) with specific messaging raised ROAS to 3.8 within 6 weeks.

## Where to start

Use PMAX above 30 conversions/month. Below that — a manual campaign comes first.

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Category: Marketing · From the [Jimmy OS KPI Glossary](https://jimmy-os.com/glossary/kpi.md) · Source page: https://jimmy-os.com/glossary/kpi/pmax-performance-max