Few Google Ads campaign types leave a B2B advertiser fewer choices than Performance Max. A B2B advertiser supplies the budget, the goal, the headlines, the photos and any video. Google then picks the placements, from search results and YouTube to Gmail, Maps, Discover and Display, and picks the people. For an online store with hundreds of sales a month, that can work well.
A B2B account is a harder case. Sales are few, the cycle is long, and most of the people who fill out a contact form aren't buyers. What Performance Max learns depends entirely on what the account counts as a conversion, so the decision that matters most for a B2B company sits outside the campaign settings. It's the goal you feed it, and when you switch it on at all. This chapter covers both, then the exclusions and signals that keep it pointed at buyers. It builds on the scheduling and settings from Chapter 9.
One Agency's B2B Test Got 80% More Leads From Performance Max. Each Qualified Lead Cost 150% More.
An agency that runs ads for commercial service companies described a test it ran for a commercial cleaning client, in a 2025 video. The client switched on Performance Max with ordinary form fills as the goal. Leads went up 80%. By the agency's account, most of them were junk: some wanted residential cleaning, some didn't need commercial cleaning at all, and some couldn't be reached. When the agency counted only the leads its client could actually use, the cost of each one had risen 150%.
That's one agency's report about one client, not a study. But it matches what B2B practitioners keep saying. Jyll Saskin Gales, who used to work at Google, says some companies she meets get one marketing-qualified lead out of every ten form fills. A digital agency that serves B2B firms warns that Performance Max brings spam and job applicants. A UK lead generation agency put it bluntly in 2026: "A form is not a lead. A qualified lead is a lead."
The reason is in how Performance Max works. It looks for more people like the ones who completed your goal. If the goal is any form, it finds more people who fill out forms, and it's very good at that. Job seekers, students, competitors checking prices and bots all fill out forms. None of them buy.
Google Says to Bid on the Step Closest to a Sale. In B2B, That's Usually the Qualified Lead.
Google's own guide to Performance Max for lead generation agrees. Its list of goals runs from contact and lead-form goals down to qualified and converted leads, and it tells advertisers to aim at the goals furthest down the funnel whenever they can. It also warns against mixing stages: putting site visits and converted leads into one bidding strategy can be duplicative and, Google says, lead to weaker results.
For a B2B account, the deepest stage that happens often enough to steer by is the qualified lead, the stage set up in Chapter 1: a quote request your sales team has looked at and marked as a real prospect, sent back to Google from your CRM or a spreadsheet. The won order goes back too, as a secondary conversion Google reports on but doesn't bid toward. In most small B2B accounts, orders are too few to bid on.
A few more of Google's own instructions matter for a B2B launch:
- Learning takes longer at low volume. Google says to allow one to two weeks, and up to six for complex setups or low conversion volume. A B2B account with a handful of qualified leads a week is that case.
- Start without a target. Google suggests starting on Maximize Conversions and adding a target cost per lead later if the data is thin.
- Value bidding needs volume. For value-based bidding, Google sets its own bar: 15 or more conversions in the past 30 days on the goal nearest the sale. Few small B2B accounts record that many won orders.
We Start Performance Max After About 30 Qualified Leads a Month. Many Small B2B Accounts Never Hit That Number.
In our method, Performance Max isn't a launch campaign. The exact match campaign and hand-set bids from Chapters 6 and 7 go first. They show what a qualified quote request looks like and what it costs. Performance Max follows, typically somewhere near month six or seven, and only when the account is logging around 30 qualified leads a month. Bigger accounts get there sooner. Many never do.
Practitioners who work in B2B land in the same place. The head of B2B at a large agency said in 2026 that accounts need to reach 30 to 40 leads a month before Performance Max is worth trying. The agency with the cleaning client says Performance Max itself needs about 30 qualified leads a month to work. A freight and logistics specialist puts the budget floor at $200 to $300 a day, and for a third-party logistics company, probably over $1,000 a day. On the same 2026 industry panel, she said Performance Max was "just starting to work" for some B2B advertisers, if the audience isn't too niche, the data can be trusted, and there's the patience and budget to wait.
Not everyone waits. One practitioner who builds campaigns for IT firms launches three Performance Max campaigns alongside Search from the start: one for new prospects, one for past visitors and one aimed at people browsing competitors' websites. We think that's a lot of automation pointed at very little data, but it's a real practice.
If your account sits at eight or twelve qualified leads a month, Chapter 7 is the honest answer: keep running Search well. Performance Max isn't a reward for patience. It's a tool for accounts with enough signal to steer it.
Performance Max Spends Part of a B2B Budget on People Who Already Know You, Unless You Exclude Them.
Left to its defaults, Performance Max tends to find the conversions that are easiest to get, and the easiest ones often come from people who already know you. Someone typing your company name was going to find you anyway. A current customer reordering through your site isn't a new lead. Both look like wins in the report.
Before launch, set up four exclusions:
- Your brand name. Google's brand exclusions keep Performance Max off searches for your own company. Google recommends exactly this when brand searches run in their own campaign, which is where we keep them. Google says these exclusions apply to Search, Shopping and YouTube search placements in Performance Max.
- Your current customers. Upload your customers' contact emails as a customer list (Google needs at least 100 active members) alongside your website tag, and turn on the "New Customer Only" setting, which Google permits with lead goals. It asks advertisers who use it to reach existing buyers through a different campaign. Keep the list current; a customer who signed last month shouldn't count as a new lead next month.
- Pages you don't want ads to land on. Out of the box, Performance Max has Final URL expansion switched on, so Google may choose a landing page for a B2B buyer that you never picked. Google's own help page warns that without URL exclusions, ads can end up on pages nobody meant them for. Exclude the careers page, the blog and any job listings. A job seeker landing on an open-positions page is the last click a B2B account wants to pay for.
- The negative keywords you already have. Your account-level negative list covers the search and shopping placements inside Performance Max as well. The job, training and consumer words from Chapter 5 carry over.
Performance Max Starts Out Guessing Who Your B2B Buyer Is. Your Customer List and Search Themes Replace the Guess.
Exclusions tell Performance Max where not to go. Signals tell it where to start looking.
Search themes. Google lets you add up to 50 search themes to each asset group. In a B2B account, the right themes aren't new guesses. They're the keywords from the exact match campaign in Chapter 6, which we call Isolation, that have already produced qualified leads: "injection molding quote," "fastener supplier," "managed it service provider." You're handing Performance Max the searches you know work. For a distributor, the themes are the product and supplier searches that already produced quotes. For a managed IT firm, they're the service and location searches that already brought in signed clients. For a machine shop, they're the quote searches. Keep each asset group to one kind of buyer, with its own themes, headlines and landing page, the same way Chapter 4 kept one page per product. An asset group that mixes a packaging buyer and an IT buyer gives Google two different pictures of a customer and no way to tell them apart.
Audience signals. Your customer list can also help show Google what a buyer looks like, while New Customer Only tells it to bid only for people who aren't on it. Build a custom segment from the rival suppliers' web addresses you collected in Chapter 5. Those are starting points, not limits; Performance Max may look beyond them.
Assets. Performance Max shows images and video as well as text, and B2B companies are often thin on both. Use real photos: the plant floor, the machines, finished parts, the people who answer the phone. Skip stock photography, which looks the same as every competitor's. When an advertiser uploads no video, Performance Max may generate one automatically, and that won't look like a working plant. A phone video of a production run is better than anything Google will make for you. The ad copy from Chapter 8, including the line that names the buyer and the minimum, goes into the headlines and descriptions here too.
After launch, hold it to the same standard as the Search campaigns: qualified quote requests and what each one cost, read from the CRM over two months or more, not from the leads column in Google Ads. If it brings more leads but fewer qualified ones, the agency's cleaning client is the story you're living, and the fix is the goal, not the budget.
Next: YouTube Ads Reach B2B Buyers Before They Search
Chapter 11 covers YouTube ads, and why they come after Search has proven what a qualified lead is worth. Every chapter is listed on the Google Ads for B2B guide home. If you want help deciding whether your account is ready for Performance Max, see our Google Ads management.
