The short answer
- Google Ads optimises towards whatever you tell it a conversion is. If that is “someone rang”, it will find you more ringing.
- Most accounts count every call over 30 seconds as a conversion, which includes wrong numbers, existing customers and job applicants.
- The fix is to send back only the enquiries that were genuinely worth having, with their value attached.
- Accounts usually get cheaper as well as better, because the wasted half of the budget stops being reinforced.
This is the most common complaint we hear from businesses spending real money on Google Ads: the reporting looks healthy, the conversion count is up, cost per conversion is down, and the sales team says it has been a quiet month.
Both things are usually true at once. Here is why.
What Google is actually optimising for
Smart Bidding is not guessing. It is very good at finding more of whatever you have defined as success, and it gets better at it the more examples you give it.
That is the problem. If your conversion action is “phone call longer than 30 seconds”, then the machine learning behind your campaigns spends every day getting better at finding people who will ring you and stay on the line for half a minute. It has no way of knowing which of those calls were customers.
Feed it a thousand examples of the wrong thing and it will find you the wrong thing more efficiently and more cheaply than you could yourself. The efficiency is real. It is pointed in the wrong direction.
What is actually in your conversion count?
When businesses first classify their calls properly, the split is usually uncomfortable. A typical hundred calls from a search campaign breaks down something like this:
- Around 40 to 50 genuine new enquiries
- 15 to 25 existing customers chasing an order or an invoice
- 10 to 15 wrong numbers and misdials
- 5 to 10 people looking for a job
- A handful of suppliers, cold callers and surveys
Every one of those counted as a conversion. Half your bidding signal was noise, and the campaigns that produced the most noise looked like the best performers, so they got more budget.
Why “cost per lead” hides it
Cost per lead is the metric that lets this run for years without anyone noticing.
Two campaigns both report 30 conversions at £22 each. One produced 24 real enquiries and six of them quoted. The other produced 9 real enquiries, 14 existing customers and 7 wrong numbers. On the dashboard they are identical, and the second one might even look slightly better.
The only way to tell them apart is to know what each call was, which means somebody or something has to classify them. Doing that by hand across hundreds of calls a month is why it does not happen.
This is the single biggest change most accounts can make. Clear Ring classifies every call, form and chat against outcomes you define, then sends only the ones you count as real back to Google Ads with the revenue attached. See how the outcome tagging works, or look at it on real data.
Google Ads call tracking: fixing it in the order that works
1. Find out what your calls actually are
Before changing any bidding, spend a month classifying calls. Not sampling: all of them. You need to know your own split before you can argue about it, and the number is almost always worse than people expect.
2. Decide what counts as a conversion
This is a commercial decision rather than a technical one. For most businesses a quote request counts and an existing customer does not. Some count a booked appointment only. What matters is that the definition is yours and it is consistent.
3. Send only those back, with values
Offline conversion imports have existed in Google Ads for years and are still barely used. Sending back 50 real enquiries instead of 100 mixed ones changes what the algorithm learns from. Attaching a value changes it again, because a £4,000 job and a £200 job stop looking the same.
4. Expect it to look worse before it looks better
Your conversion count will roughly halve overnight, and your cost per conversion will roughly double. Nothing has got worse. You have stopped counting things that were never worth counting. Say this to whoever reads the report before you make the change, not after.
What changes once it is working
The keyword level is where it shows up first. Two keywords with the same cost per conversion turn out to be completely different: one brings people ready to buy, the other brings people looking for a job or a price to compare against a supplier they have already chosen.
You will usually find at least one campaign that has been quietly funded by bad conversions for a long time, and at least one that has been underfunded because its enquiries were fewer but far better.
Moving budget between those two is where the return comes from, and it does not require spending another penny.
Common questions
Does this work for forms and chats too?
Yes, and it should. A form enquiry can be spam or a job application just as easily as a call can. Classifying only your calls fixes half the problem.
Do I need to change my Google Ads account structure?
No. This changes what you feed back into the account, not how it is built.
How long before bidding adapts?
Usually a few weeks, depending on volume. Smart Bidding needs enough examples of the new definition before it changes behaviour, so resist judging it in the first fortnight.
Will my agency object?
A good one will be relieved, because it gives them something better to be judged on than lead volume. If the objection is that the numbers will look worse, that is worth a longer conversation.