Is Google Ads Getting Better at Generating the Wrong Leads
Conversions are up. Cost per lead is down. Google says the campaign is improving.
Sales says the leads are getting worse.
If that sounds familiar, your Google Ads account may be optimising for the wrong outcome.
Google’s automation learns from the conversion data it receives. If every form submission is treated as equally valuable, it will find more people likely to complete a form, not necessarily more prospects likely to become customers.
After managing more than £25 million in Google Ads spend for B2B clients, we have seen how easily improving platform metrics can conceal declining commercial value.
The risk is particularly high in niche B2B markets, where search volumes are low, sales cycles are long and one qualified opportunity may be worth more than dozens of poor-quality leads.
Ask yourself:
- Can Google distinguish a qualified opportunity from a low-quality enquiry?
- Is it learning from enough commercially valuable conversions?
- Do improving campaign metrics correspond with better pipeline?
If the answer to any of these questions is unclear, giving Google more control could amplify the problem.
Find out whether your Google Ads account is giving Google the right signals.
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Google can only optimise for what it can see
Google Ads is steadily taking more responsibility for bidding, keyword matching, ad copy and landing-page selection.
AI Max for Search extends that control. It can identify additional searches, tailor creative and choose where to send the visitor based on what Google believes will produce a conversion. Google recommends conversion or conversion-value-based bidding to access its full capabilities.
This can be powerful when the platform has enough reliable information. But Google cannot see your commercial reality unless it is accurately represented in the data.
It cannot automatically distinguish a sales-qualified opportunity from a content download, recognise that one target-account enquiry may outweigh dozens of irrelevant submissions, or account for valuable phone calls that are not tracked.
This reflects a wider B2B measurement problem explored in our article, “Your Best Prospects Aren’t Filling in Your Forms”.
The more control you give Google, the more important the quality of those signals becomes.
Does your account have enough conversion data?
Google does not impose a formal conversion minimum for every automated strategy. For Target ROAS in Search, its current guidance cites at least 15 conversions with reliable values during the previous 30 days. It also acknowledges that lower volumes produce noisier performance data.
Meeting a platform threshold does not necessarily mean an account has enough evidence to support commercially sensible decisions.
Sharp Ahead’s practical rule is to be extremely cautious about conversion-based automation unless an advertiser generates at least 30 attributable, valuable and representative Google Ads conversions each month.
Every part of that definition matters:
Attributable: Google can connect the outcome to the click that produced it.
Valuable: The conversion represents genuine commercial potential.
Representative: The data reflects the customers the business wants more of.
Thirty raw form submissions do not meet that standard. Nor does lowering the definition of a conversion until the account appears to have enough data.
Niche B2B accounts rarely generate the volume of rapid, repeatable transactions available to consumer advertisers. Google may therefore be making consequential decisions using very little evidence.
Why niche B2B still needs human judgement
Automation can process auction signals at a speed and scale no person could replicate. Used in the right account, it can be highly effective.
For low-volume B2B campaigns, human judgement remains essential. Depending on the account, this might involve:
- tighter keyword match types
- rigorous negative keyword lists
- ad copy that discourages unsuitable prospects
- campaign structures reflecting commercial priorities
- search-term reviews based on buying intent
- comparison of platform results with lead quality and pipeline
This approach requires more expertise than accepting Google’s recommendations. For many specialist advertisers, it provides a more defensible route to profitable growth.
Our work with Kingspan shows how paid search can contribute to project enquiries, contract wins and commercial return when campaigns are aligned with the wider buying journey.
Should niche B2B advertisers use AI Max?
AI-assisted search creates a genuine dilemma. Buyers are using longer, more conversational queries, and Google recommends broad match or keywordless targeting to reach them.
This may reveal valuable intent that a conventional keyword list misses. But these capabilities increasingly rely on automated bidding strategies that low-volume advertisers struggle to feed.
Ignoring them entirely could eventually limit reach. Handing over too much control without sufficient evidence could waste budget and reduce lead quality.
For most niche B2B accounts, the sensible response is a tightly controlled core campaign structure combined with separately budgeted experiments where the opportunity justifies them.
Any test should have clear spending limits and success criteria based on commercial lead quality rather than conversion volume alone.
How much control should you give Google?
You do not need to manage the account yourself. But you should expect clear answers to four questions:
- What is currently counted as a conversion?
- Can Google distinguish qualified opportunities from low-value enquiries?
- How many usable conversions does the account generate each month?
- Are automated decisions evaluated against pipeline and revenue?
If the answers rely mainly on Google’s optimisation score, conversion volume or cost per lead, the account may be measuring efficiency without establishing commercial value.
Google will continue encouraging advertisers to hand over more decisions. The right level of automation depends on the quality and quantity of the evidence available.
For many niche B2B advertisers, that means retaining significant human control while improving conversion tracking and testing selected automation carefully.
Automation should earn its place through better commercial results. It should not receive it simply because Google recommends it.
If you are unsure whether your account is giving Google the right signals, a specialist audit can establish which automation your data can support, where tighter control is needed and which emerging capabilities are worth testing.
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