Is Performance Max worth it?
Performance Max is worth it when you have reliable conversion tracking, enough conversions each week for it to learn, and conversion values that reflect real revenue. It wastes money when it is allowed to bid on branded searches, low-quality placements or easy, low-value conversions without controls.
Six signs Performance Max is wasting spend
1. ROAS is high but total sales have not changed
If PMax reports strong results but your overall revenue is flat, it may be capturing sales that would have happened anyway, especially branded searches and returning customers.
2. Branded search volume dropped in your Search campaign
When PMax launches and your brand Search campaign suddenly gets fewer impressions, PMax has likely taken over those searches. Apply brand exclusions so it has to find new demand.
3. Search term insights show irrelevant queries
PMax search term insights often reveal job searches, competitor research or unrelated topics. Add account-level negative keywords to block them.
4. Leads look fine in Google but poor in your CRM
If PMax optimizes for any form submission, it can find people who fill out forms but never buy. Import offline conversions or qualified lead events so it learns from the leads that close.
5. Spend is going to placements you would never choose
Review placement reports for mobile apps and low-quality sites. Exclude them at the account level.
6. There is not enough conversion data
With only a few conversions a month, PMax has little to learn from and tends to chase cheap, low-intent traffic. A tightly managed Search campaign may perform better until volume grows.
How do you stop Performance Max from bidding on your brand?
Add a brand list in Google Ads and apply it as a brand exclusion to the Performance Max campaign, then run a separate Search campaign for branded keywords. This keeps cheap brand traffic out of PMax and makes its reported results more honest.
How should you measure Performance Max?
Measure Performance Max by incremental results: new customers, total revenue and blended ROAS across all campaigns before and after launch, not just the ROAS it reports for itself.
Comparing against a written forecast helps. If PMax was projected to add a certain number of new customers and total customers did not move, the reported conversions were probably shifted, not created. Learn how we approach it on our Performance Max management page.