Quick answer: Performance Max for lead generation works with accurate tracking, lead quality feedback, brand exclusions and controlled final URLs.
Performance Max (PMax) is Google’s all-in-one campaign type. You give it a budget, a conversion goal and a set of assets (headlines, images, videos, descriptions), and it shows ads across Search, YouTube, Display, Gmail, Discover and Maps. For e-commerce it’s often the main campaign. For lead generation it can work well, but only with good tracking and guardrails.
For the basics and how it compares with standard Search campaigns, start with Search vs Performance Max.
The big risk for lead generation
PMax optimises towards whatever you call a conversion. If a conversion is “form submitted”, PMax will find the cheapest form submissions available, and some of the cheapest come from low-quality placements, spam bots and people who never intended to buy. Many businesses try PMax, see a flood of cheap leads, then discover few are real.
The fix isn’t avoiding PMax. It’s controlling what it optimises towards and where it can go.
Before you launch
- Accurate conversion tracking. Only count real enquiries. See Google Ads conversion tracking.
- Lead quality feedback. Set up enhanced conversions for leads so you can send back which leads were qualified. Ideally, optimise for “qualified lead” rather than “form submit”.
- Spam protection on forms. A honeypot field, a server-side check or a CAPTCHA stops bot submissions counting as conversions.
- A working Search campaign first (recommended). PMax learns faster when the account already has conversion history.
Setting it up
- Goal: your lead or qualified-lead conversion action. Remove irrelevant conversion goals from the campaign.
- Location: “Presence: people in or regularly in your locations”, not “presence or interest”.
- Budget: enough for at least 30 or more conversions a month to learn. Below that, Search alone is often better.
- Bidding: Maximise conversions to start, then add a target CPA once stable.
- Final URL expansion: turn it off or exclude pages you don’t want ads sending people to, such as blog posts, careers and privacy pages.
- Asset group: one per service type. Write strong headlines, include real images (landscape, square and portrait), your logo, and at least one video. If you don’t add a video, Google may make one automatically from your images, and it usually isn’t great.
- Audience signals: add your customer list, website visitors and search themes. These are hints, not limits.
Guardrails available in 2025–26
Google has added more controls to PMax over the past two years:
- Campaign-level negative keywords, which apply to Search and Shopping inventory
- Brand exclusions, so PMax doesn’t take credit for people already searching for your business name
- Search terms reporting to see what people searched before clicking
- Channel performance reporting showing how results split across Search, YouTube, Display and other channels
- Placement exclusions at account level, to block poor-quality sites and apps
Use them. Check search terms and channel performance weekly at first.
Signs PMax is wasting money
- Lots of conversions but very few real leads in your CRM
- Most spend going to Display with high conversion counts
- Form submissions with fake names or gibberish
- Conversions concentrated outside business hours with no follow-through
If you see these, tighten conversion tracking first, then exclusions. If lead quality still lags, run Search only and revisit PMax once you have offline conversion data.
When PMax makes sense for service businesses
- You have reliable conversion tracking and quality feedback
- You have good visual assets (photos, video)
- Your Search campaigns are already working and limited by search volume
- Budget allows at least a few thousand dollars a month
Sources and further reading
Written by Gregory
20 years building websites and running lead generation, mostly with my own money on the line. Based in Sydney, working with clients worldwide. How I work →