Short answer
- Search campaigns show text ads on Google search results for keywords you choose. High control, easy to understand.
- Performance Max (PMax) is one campaign that can show ads across Search, YouTube, Display, Discover, Gmail and Maps, with Google's automation choosing where and to whom.
- For a local service business with a small budget, a well-built Search campaign is usually the clearer starting point. PMax tends to shine with good conversion tracking, enough conversion data, and strong images and video.
- They can run together. When a search term exactly matches an exact match keyword in your Search campaign, Google says the Search campaign is prioritized.
How each campaign works
Search campaigns: you pick the searches
You choose keywords ("emergency plumber", "plumber near me"), write ads, set a budget and a bid strategy. Your ad can appear when someone searches something that matches your keywords. You can see which search terms triggered your ads, block the bad ones with negative keywords, and send each group of keywords to the most relevant page.
The appeal is clarity. When a Search campaign works or fails, you can usually see why.
Performance Max: you give Google the ingredients
Instead of keywords, you give Google a conversion goal, a budget, and an "asset group": headlines, descriptions, images, logos, videos, plus optional audience signals and search themes. Google's systems then decide which channel, which combination of assets and which people to show ads to, across its inventory. See Google's overview: About Performance Max campaigns.
The appeal is reach and less manual work. The trade-off is less direct control over where your money goes, although Google has added more reporting and controls over time, including search term insights, channel performance reporting and campaign-level negative keywords.
Side-by-side
| Search campaign | Performance Max | |
|---|---|---|
| Where ads show | Google search results (and optionally search partners) | Search, YouTube, Display, Discover, Gmail, Maps |
| How you target | Keywords and match types | Goal, assets, audience signals, search themes |
| Ad formats | Text ads (plus assets like call and location) | Text, image, video, combined automatically |
| Creative needed | Headlines and descriptions | Text plus images, logo and ideally video |
| Control | High | Lower, guided by automation |
| Reporting clarity | Detailed by keyword and search term | Improving, but more blended |
| Best with | Clear, high-intent searches; small budgets | Solid conversion tracking and enough conversion data |
What happens when both could show
If you run both, they may be eligible for the same search. Google's prioritization rules, as described in its help documentation, work roughly like this:
- If the search term is identical to an exact match keyword in your Search campaign, the Search campaign is prioritized over Performance Max.
- PMax search themes are treated like phrase and broad match keywords, so for non-identical matches the ad with the higher Ad Rank tends to win.
- There are exceptions, for example budget-limited campaigns, so check your search terms reports rather than assuming.
Practical takeaway: if certain searches matter most to you (your brand name, your core service), put them as exact match keywords in a Search campaign so you keep control over the ad and the landing page. Google's article on ad group and asset group prioritization explains the details.
What Performance Max needs to work
PMax learns from conversions. Without good signals, it's guessing with your money. Before launching it, check you have:
- Accurate conversion tracking. Calls, form submissions or purchases recorded properly, not page views counted as conversions.
- Enough conversion volume for the system to learn. A campaign that gets one or two leads a month gives automation very little to work with.
- Good creative. Real photos of your work, a clear logo, and ideally a short video. If you don't supply video, Google may generate one from your images, which rarely looks as good as your own.
- A landing page that converts. Automation can find people; it can't fix a slow or confusing page. See PPC landing pages.
- Brand exclusions if needed. Otherwise PMax can spend on people searching your business name, who might have found you anyway.
Which to choose
| Your situation | Usually start with |
|---|---|
| Local service business, small budget, people search for what you do | Search campaign with tight keywords |
| No reliable conversion tracking yet | Search campaign, and fix tracking first |
| Online store with a product feed | Performance Max (often with Shopping inventory) |
| Steady conversions, good photos and video, want more reach | Test Performance Max alongside Search |
| Brand name gets lots of searches | Exact match brand keywords in Search; consider brand exclusions in PMax |
Test any change against your cost per lead or customer, not clicks or impressions. Automation can deliver lots of cheap impressions on channels that never produce a call.
What I'd do
For most local service businesses, I start with Search campaigns and only add Performance Max once conversion tracking is solid and there's enough data. That's how I set up Google Ads management ($250/month plus your ad budget). Whoever runs your account, ask how they'll handle the Search vs PMax question and how they'll prove it's working. My guide on Hire a Google Ads expert lists the questions, and the free Google Ads checklist helps you review an existing account.