Google Ads should be one of the most efficient channels for B2B SaaS: you can reach people at the exact moment they search for a solution. Yet many SaaS teams conclude it is too expensive. In most accounts we audit, the problem is structural rather than the channel itself.
Mistake 1: optimising for form fills
Smart bidding is powerful, but it optimises for whatever you tell it is a conversion. If that is any form submission, the algorithm learns to find people who submit forms, including students, job seekers, competitors and buyers far too small for your product. Cost per lead falls; cost per customer rises.
The fix: send downstream outcomes back to Google from your CRM. Mark which leads became sales-qualified, which became opportunities and which closed, ideally with values. Then let bidding optimise for qualified pipeline. This single change often has the biggest impact of anything in the account.
Mistake 2: one campaign for every intent
Lumping brand, competitor, category and problem keywords together hides very different economics. Brand searches convert cheaply and should not subsidise expensive, exploratory terms in reports.
The fix: separate campaigns by intent, each with its own budget, bidding target and landing pages:
| Campaign | Typical role |
|---|---|
| Brand | Protect existing demand, cheapest conversions |
| Competitor | Win buyers who are switching or comparing |
| Category | Capture buyers building a shortlist |
| Problem | Reach earlier-stage buyers, needs strong education |
Mistake 3: broad match without guardrails
Broad match can find valuable searches you would never think of. Without strong conversion signals and constant negative keyword work, it also spends heavily on irrelevant ones.
The fix: only use broad match once offline conversions are in place, review search terms weekly, and maintain shared negative lists for jobs, free tools, training and unrelated meanings of your category terms.
Mistake 4: sending every click to the homepage
A searcher looking for "[competitor] alternative" wants to see why you are a better option than that competitor, not your generic homepage. Mismatched landing pages waste the intent the searcher brought with them.
The fix: dedicated pages for each major campaign theme, matching the language of the search, with proof points and a clear next step. A demo request for sales-led products; a trial for self-serve ones.
Mistake 5: judging the channel too quickly
B2B sales cycles mean a click today may become revenue in three months. Accounts judged on 30 days of data are often cut just before they start paying off.
The fix: judge on leading indicators such as qualified pipeline created, and look at closed revenue on a 90-day or longer window.
What good looks like after 90 days
An account that has been rebuilt properly usually shows a recognisable pattern after three months:
- Fewer total leads, but a higher share accepted by sales
- Cost per sales-qualified opportunity falling, even if cost per lead rises
- Budget concentrated in brand, competitor and a few proven category themes
- A clear view of pipeline and payback by campaign in the monthly report
If your account shows the opposite, with rising lead volume and flat pipeline, it is usually optimising for the wrong conversion.
Mistake 6: no plan for trial signups
For product-led and hybrid companies, a trial signup from a personal email address and a signup from a 200-person company are not worth the same. Sending the same conversion value for both teaches the platform to chase the cheapest signups.
The fix: send conversion values or separate conversions based on company size, activation or a product-qualified signal, so bidding favours the signups most likely to pay.
A 30-day account clean-up checklist
- Import sales-qualified leads and opportunities from your CRM as conversions
- Separate brand, competitor, category and problem campaigns
- Review six months of search terms and build shared negative lists
- Exclude countries and languages you cannot sell to
- Pause keywords with significant spend and no opportunities
- Create landing pages for the two or three biggest campaign themes
- Set up a weekly search terms review and a monthly pipeline report
A note on budget
For B2B SaaS, Google Ads needs enough budget to give your highest-intent campaigns meaningful data, usually at least several thousand dollars a month. With less, focus on brand and competitor campaigns and grow from there.
If you want a second opinion on your account, our PPC team offers a free review.