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31 October 2026Updated 31 October 2026

Performance Max or Search campaigns for your business

“Google keeps telling me to try Performance Max.” Plenty of owners hear that, usually from a pop-up in their Ads account or a rep on the phone. It sounds like the clever option. One campaign, every Google channel, the machine does the rest. Sometimes that’s exactly right. Sometimes it quietly spends your budget on YouTube views and display banners when what you wanted was people searching for you.

In brief

Search campaigns put text ads in front of people who are searching, using keywords you pick.
Performance Max runs across all of Google’s ad space from one campaign and leans hard on automation and your conversion data.
They can run side by side. Google has rules about which one shows when they overlap.
If your tracking’s shaky or your area’s small, start with Search.

What each campaign type actually does

A Search campaign is the classic Google ad. Someone types a search, and if it matches one of your keywords your text ad can show up on the results page. You choose the keywords and how loosely they’re matched. You write the headlines. Our post on how broad, phrase and exact match behave covers that side properly.

Performance Max works differently. Google calls it a goal-based campaign type that gives you access to all of its ad inventory from a single campaign. That means Search, YouTube, Display, Discover, Gmail and Maps. You don’t hand it a keyword list. You give it your goal, a set of headlines, images and videos, and some hints about your audience. Then it decides where to show what, and to whom.

Think of an online homeware shop. With Search, it bids on searches like ‘linen duvet covers’ and pays when someone clicks. With Performance Max, the same shop might turn up in search results, in a YouTube advert, on a news site and in someone’s Gmail promotions tab, all from one budget.

When Performance Max makes sense

Google pitches it at businesses with specific conversion goals, like online sales or leads. That word ‘conversion’ is doing a lot of work. Performance Max finds people by learning which clicks turn into results. If it can’t see the results, it’s guessing.

So it tends to suit businesses with plenty of conversions flowing through, recorded properly. A shop with a product feed and hundreds of orders a month fits. So does a training provider taking course bookings online, or a holiday let company with direct bookings and values attached. It also needs decent creative. Google’s own optimisation tips ask for at least 15 headlines, 5 descriptions, 7 images and at least one video. Without a video of your own, Google may use auto-generated ones on YouTube. Uploading your own is how you keep a lid on those. Never made a video? Bear that in mind before you start.

Google also says Performance Max can sit alongside your keyword-based Search campaigns and complement them. You don’t have to switch one off to use the other.

When Search is the better starting point

Lots of businesses are better off with a tight Search campaign first. A locksmith wants people searching for a locksmith right now, nearby. They don’t need a YouTube audience. Same goes for an accountant offering year-end accounts, or an engineering firm whose buyers search for a specific part or process. The demand already exists. You just want to be there when it shows up.

Search also gives you a clearer view. You can see the search terms that triggered your ads and cut the duff ones out, which is the whole point of our guide to negative keywords and the search terms report. It’s easier to learn from too. When an ad’s tied to a handful of keywords and one landing page, you can tell what’s working.

And then there’s data. A small firm getting six enquiries a month doesn’t give an automated campaign much to learn from. Before you hand over the steering wheel, make sure your conversion tracking and consent mode are set up properly. Get that wrong and Performance Max will optimise towards whatever you’ve told it counts, which might be page views.

What happens when you run both

Plenty of accounts run Search alongside Performance Max. So which ad shows when the two overlap?

Google has a pecking order. If someone’s search exactly matches an exact match keyword in one of your Search campaigns, or is a spell-corrected version of it, the Search campaign gets priority over Performance Max. If there’s no exact match like that, Google generally serves whichever campaign has the higher Ad Rank. Performance Max lets you add ‘search themes’ as hints, and Google treats those with the same priority as phrase and broad match keywords.

In practice, your exact match keywords are the way to keep your most important searches in the campaign you can see and control. Brand searches are a special case. Google says Performance Max may filter out navigational or brand-specific searches so that a dedicated brand Search campaign can pick them up. If you rely on that, Google’s advice is to make sure the brand campaign has enough budget and good ads.

The controls you do and don’t get

Performance Max used to feel like a black box. It’s less so now, though you still give up some control.

You can add negative keywords to Performance Max, and account-level negatives apply too. They only cover Search and Shopping inventory, though. A negative keyword won’t stop your ad appearing on a YouTube video. Google also lets you set brand exclusions.

Reporting has improved. There’s a search terms report for Performance Max. Open the Search terms report under Insights and reports and pick ‘Search terms and landing pages for Performance Max’ from the drop-down. There’s also a channel performance report that breaks results down by Search, YouTube, Display, Discover, Maps, Gmail and Search partners. Check that second one early. If most of the spend is going on channels that never produce enquiries, you’ll want to know.

Then there’s Final URL expansion, which is switched on by default. Google can send people to a different page on your domain if it thinks that page better matches the search. On a big shop with thousands of product pages that can help. Picture a plumbing firm’s ad landing someone on an old blog post or the careers page, though. You can exclude URLs, or turn the setting off altogether. Decide which before launch.

Search campaigns are getting their own dose of automation too. AI Max for Search is an optional set of features layered onto a normal Search campaign, adding search term matching, text customisation and final URL expansion. You can turn AI Max off, or switch features off one by one. If you want Search for its control, check what’s switched on.

Giving it a fair trial

If you do test Performance Max, give it time. Google suggests running a new campaign for at least six weeks and avoiding frequent changes to budget, bid strategy or campaign status during that period, because that can reset the learning.

Six weeks is a while if the budget’s small. Our post on setting a Google Ads budget that makes sense walks through working back from cost per lead, which helps you decide how much a test can safely spend.

Judge it on real outcomes. That means enquiries you can match to your inbox, calls that lasted long enough to mean something, orders that didn’t get refunded. Lots of cheap conversions on the dashboard can still mean an empty diary.

A sensible way to decide

For many small and mid-sized businesses, we’d suggest this order. Get tracking right. Run a focused Search campaign on the searches that matter most. Send those clicks to landing pages built for the ad, because the home page rarely answers the search. Once enquiries or sales are coming through steadily and you trust the numbers, try Performance Max next to Search and see what it adds.

Online shops with a healthy product feed can often get there faster. A mobile hairdresser or a roofer covering one district may never need more than Search. There’s no prize for using every campaign type Google offers.

Our plain-English guide to Google Ads for business covers the auction, bidding and landing pages if you want the wider picture first.

Getting a second opinion

If Google’s been nudging you towards Performance Max and you’re not sure whether to say yes, it helps to have someone look at your account and your tracking first. Choosing and running the right mix of campaigns is a big part of our Google Ads management work. Drop us a line and we’ll tell you plainly which one we think fits.

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Sources

Scott Woodfield

Founder of TWA. Scott has spent 17 years in web design and digital marketing, nine of them inside agencies and eight running his own practice. He plans, designs and builds the sites himself, from single landing pages to full ecommerce builds, and he's the person you speak to when you call.

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