Google Ads for B2B: Why Most Search Campaigns Waste Budget on the Wrong Keywords

A B2B software company in Paris was spending a comfortable monthly budget on Google Ads, generating a steady stream of form fills that the dashboard reported as conversions, and closing almost none of them as customers. The keywords driving most of the spend were broad, high-volume terms that sounded relevant in a keyword planner — the kind of terms a consumer brand would chase for traffic. What they were missing entirely was any keyword built around someone three steps from signing, and any way to tell Google which of those form fills actually became revenue. Google Ads rewards whatever signal you feed it; feed it form-fill volume with no quality signal attached, and it will happily deliver more low-quality form fills at scale.

Building a Keyword Architecture Around Buying Intent, Not Volume

B2B keywords should be organized into distinct intent tiers rather than one undifferentiated list: problem-aware terms describe a pain point without naming a solution category (for instance, someone searching around a business challenge before knowing a service exists to solve it); solution-aware terms name the category or approach; comparison and branded terms show a prospect actively evaluating specific vendors; and high-intent transactional terms signal someone ready to talk to sales now. Each tier deserves its own ad group and, critically, its own landing page — routing every click to the homepage or one generic contact page tanks Quality Score and conversion rate alike, because relevance between keyword, ad copy and landing page is one of the strongest levers Google gives advertisers, and one of the most commonly ignored. Negative keyword lists need constant maintenance in B2B accounts specifically, since broad match and phrase match will otherwise pull in job seekers searching for careers, students researching for a paper, and free-tool seekers who will never become paying customers, all of which quietly inflate spend without ever appearing as an obvious problem in a top-line conversion report.

The deeper fix for B2B accounts with long sales cycles is closing the loop between Google Ads and the CRM: importing offline conversion data — which leads actually became sales-qualified, which turned into closed revenue, and at what value — back into Google Ads as enhanced or offline conversions gives the bidding algorithm a real quality signal to optimize toward, instead of optimizing purely for form-fill volume regardless of downstream quality. Call tracking closes a related gap, since a meaningful share of B2B conversions happen by phone and are otherwise invisible to the platform entirely. Automated bidding strategies such as Target CPA or Target ROAS need a minimum volume of conversions per month to have enough data to optimize against — accounts below that threshold should stay on manual CPC or maximize-clicks bidding rather than force an automated strategy that will make erratic decisions on too little data. None of this replaces a periodic Quality Score audit across ad groups, since even a well-structured account with strong intent-tier targeting will still bleed spend on ad groups where landing page relevance or expected click-through rate has quietly degraded over time.

• Segment keywords into problem-aware, solution-aware, comparison/brand and transactional tiers, each with its own ad group.
• Build a dedicated landing page per intent tier instead of routing all clicks to one generic page.
• Maintain and update the negative keyword list monthly.
• Import offline conversions from the CRM back into Google Ads to optimize bidding toward real revenue.
• Set up call tracking to capture phone conversions invisible to standard tracking.
• Audit Quality Score by ad group quarterly, not just at account level.