Google Ads conversion tracking tells you which ads, keywords and campaigns lead to the actions you care about: a form submission, a phone call, a purchase or a booked estimate. You set it up by creating a conversion action inside Google Ads, then installing the Google tag (directly or through Google Tag Manager) on your site so it can report that action back. This guide walks through each step, the phone call setup, how to check your numbers, and the mistakes we see most often.
If your ads are running without it, you are paying for clicks and guessing at the results. That is a site that never rings the phone, with no way to tell why.
TL;DR
- Conversion tracking is a free tool in Google Ads. You define what counts as a valuable action, and Google reports which ads produced it.
- Website conversions run through the Google tag or Google Tag Manager. Phone calls need a call conversion action and a minimum call duration.
- Mark only real business outcomes as primary conversions. Misconfigured primary and secondary actions can stop the bidding system from optimizing properly.
- Enhanced conversions and offline imports help you keep accurate numbers as cookies become less reliable, and tie ads to actual sales.
- Check the Conversions column and conversion status after setup, then compare against your own records every month.
Table of Contents
- What counts as a conversion
- How Google Ads tracks website conversions
- Step-by-step: set up a website conversion
- Phone call conversion tracking
- Enhanced conversions: keeping the data accurate
- How to check your conversions in Google Ads
- Common mistakes that waste ad budget
- Our perspective
- Getting help with tracking and management
- A simple tracking checklist
- FAQ
- Sources
What counts as a conversion
A conversion is any action you decide is valuable. Google's own help pages give examples such as a purchase, a sign-up or a phone call, and you can set up a separate conversion action for each type.
For a local service business, the useful list is usually short:
- A quote or contact form submission
- A phone call from an ad or from your website
- A click on a "call now" or "text us" button
- An online booking
- A purchase, if you sell online
Page views and time on site are not conversions. Neither is a click on your menu. If everything counts, nothing tells you anything.
When to use conversion tracking
Always, from the first day of spend. Google describes the purpose as measuring which ads drive valuable actions like purchases or signed contracts and optimizing toward your goals. Without it, Google's automated bidding has nothing to learn from, and you have nothing to judge it by.
How Google Ads tracks website conversions
The mechanism is simple. When someone clicks your ad, Google stores the click information. When that person later completes an action on your site, the tag sends that conversion back to Google Ads. Per Google's documentation, you do this with a site-wide Google tag, or with Google Tag Manager plus a Conversion Linker tag, which stores the ad-click information and sends the conversion data on.
When direct measurement is not available, for example because a visitor declined cookies, Google may use modeled conversions based on privacy-safe data from signed-in users to estimate performance. That means your reported numbers can include some estimates, which is one reason to compare them against your own lead records.
Which method: Google tag or Tag Manager
Both work. Pick based on who manages your site.
| Google tag installed directly | Google Tag Manager | |
|---|---|---|
| Best for | Simple sites with one or two conversions | Sites with several conversions and other tracking tags |
| Setup | Paste the global tag and event snippet into your pages | Add one container, then build tags inside it |
| Changes later | Edit site code | Edit inside the container, no code changes |
| Watch out for | Snippet missing on the thank-you page | Forgetting the Conversion Linker tag |
If you are not sure, Tag Manager is usually the cleaner long-term choice, because the next person who touches your marketing can see everything in one place.
Step-by-step: set up a website conversion
The exact menu labels in Google Ads change from time to time, so treat the steps below as the sequence, and follow the on-screen prompts for the current wording.
- Create the conversion action. In your Google Ads account, go to the goals or conversions area and create a new conversion action for a website. Name it clearly: "Quote form submitted," not "Conversion 1."
- Choose how it is measured. Google Ads Help says that choosing URL-based tracking for page loads or code-based tracking for complex interactions matters for accurate data. A thank-you page that only appears after a form is submitted works well with URL-based. A form that submits without changing pages needs an event-based approach.
- Set the value. If you know roughly what a lead is worth, enter it. If not, you can leave it without a value for now, but write down your average job size so you can add one later.
- Install the tag. Either add the Google tag and event snippet to your site, or use the Tag Manager option shown in the conversion action. The event snippet uses a gtag event call of the type "conversion" to mark that specific action as a conversion.
- Test it. Submit your own form from a test device, then check the conversion status in Google Ads. Allow some time for it to show.
Primary vs. secondary conversions
This is where accounts quietly break. Primary conversions are the ones Google bids toward. Secondary conversions are observation-only. Google Ads Help warns that misconfiguring primary and secondary conversion actions can prevent the algorithm from optimizing campaign performance effectively.
In plain terms:
- Primary: form submissions, qualified calls, bookings, purchases.
- Secondary: softer signals such as a click on a phone number, a page scroll or a PDF download.
If a button click is marked primary, Google will happily find you more people who click buttons. That is not the same as finding you customers.
Phone call conversion tracking
For many local businesses, the phone is the main way a lead arrives. Tracking it takes a bit more setup than a form, and it is the step most often skipped.
Google describes three common ways to count calls: calls directly from your ad, calls from your website, and calls imported from your own systems. For tracking calls on a website, the process is to create a conversion action, set a minimum call duration, and install the Google tag and phone snippet on your site. The snippet swaps your business number for a Google forwarding number for visitors who came from an ad click, so the call can be tied to that click.
Set a sensible minimum call duration
A three-second wrong number should not count the same as a ten-minute conversation about a job. The minimum call duration setting lets you decide how long a call must last before it is counted. Think about how long a genuine inquiry takes for your business, and set it from there. A roofing company and a dental office will land on different numbers.
Verify your domain
One detail that catches people: unverified phone numbers can lead to ad disapprovals. Google's guidance is that verifying domain ownership, such as by linking Google Search Console to Google Ads, is needed to prevent that. Do it before you launch the phone snippet.
Go further: import calls that became sales
A call is not revenue. What matters is whether it became a job. "Calls via uploads" let you import offline conversion data from a CRM or sales system to see which campaigns lead to actual sales. Imported call data can then be matched with Google Ads click data to show which keywords and ads are driving sales rather than just ringing phones.
This takes discipline on your side. Someone has to mark which calls turned into work. If your office already logs that in a CRM or a spreadsheet, you have most of what you need.
Enhanced conversions: keeping the data accurate
Cookies are less reliable than they used to be. Google's answer is enhanced conversions, which let tags use hashed user-provided data in a privacy-safe way to improve conversion accuracy as cookie reliance decreases.
For lead-generation sites, there is a version built for forms. When enhanced conversions for leads are enabled, the associated Google tag automatically captures relevant form interaction events on your website, and a diagnostics report helps you confirm it is working. Google lists an email address, phone number or address as the kind of user-provided data it can use.
Two practical points:
- Your privacy policy should say what you collect and why. Canadian businesses should confirm their obligations under the privacy rules that apply to them.
- Your form must actually ask for an email or phone number for this to have anything to work with.
How to check your conversions in Google Ads
Setting it up is half the job. The other half is making sure the numbers mean something.
- Check conversion status. Each conversion action shows a status in your goals area. Look for it to read as recording, not "no recent conversions" or "unverified," once you have had traffic.
- Look at the Conversions column. Google lets you choose which conversions appear in the Conversions column through the account-default setting. If your numbers look too high, a secondary action may be counted where it should not be, or the reverse.
- Compare with your own records. Count the form submissions in your inbox and the calls in your phone log for the same week. They will not match perfectly, because of modeled conversions and calls that did not meet your duration setting, but they should be in the same range.
- Test after every site change. A redesign, a new form plugin or a changed thank-you page is the most common reason tracking silently dies.
Warning signs
| What you see | Likely cause |
|---|---|
| Zero conversions after weeks of clicks | Tag missing, wrong page, or form submits without a trackable event |
| Conversions far above your real leads | A secondary action or page view set as primary, or the tag firing twice |
| Calls reported but your phone log is empty | Minimum duration set too low, or test calls counted |
| Conversions suddenly stop | Site update removed the tag or changed the thank-you URL |
Common mistakes that waste ad budget
We have seen the same problems often enough to list them.
- Tracking the click, not the lead. If "clicked phone number" is primary, Google optimizes for clicks on that number.
- Tracking everything. More conversions on the dashboard does not mean more business.
- Never testing. Many accounts run for months on a broken tag.
- Counting duplicates. A thank-you page that reloads can fire the conversion twice.
- Ignoring the follow-up. Tracking a lead is not the same as answering it. If calls go to voicemail, the numbers look fine and the revenue never shows up.
- Keeping the data in the agency's account. Your Google Ads account and your conversion actions should belong to you. Anyone managing them should be a user on your account, not the owner of it.
Tracking also affects how you set your spend. Before you decide on a monthly figure, read our guides on how much to spend on Google Ads in Canada and what Google Ads costs in Canada. A budget only makes sense once you can measure what each lead costs. And if your leads come from a form on a page built for ads, lead generation landing pages that actually work is worth a read before you pay for more clicks.
Our perspective
We start every Google Ads conversation with the same question: how will we know it worked? If the answer is "we'll see how it goes," the campaign is not ready to launch.
In our experience, tracking is the least glamorous part of an ad account and the part that decides everything else. Keywords, ad copy and bids all matter, but every one of them is judged by the conversion data behind it. Bad data means bad decisions, and automated bidding will follow bad data faithfully.
For the service businesses we work with, phone calls and form submissions are the real goal. So we treat them as the first thing to set up and the first thing to check, before we touch anything else. A site that never rings the phone is a measurement problem as often as it is a traffic problem, and you cannot tell which without tracking.
We work with businesses across multiple industries, not only one trade. The details change, a contractor's calls look different from a clinic's bookings, but the principle does not: define the outcome that pays your bills, track it cleanly, and judge the ads by it.
Launch & Found
Getting help with tracking and management
Some owners are happy to set this up themselves with the steps above. Others would rather have it built into how the ads are run from day one.
Launch & Found is a marketing agency based in London, Ontario. We manage Google Ads, and we also build websites, handle SEO and produce photo, video and drone content. Our primary focus is London, and we also serve businesses in surrounding Ontario service areas. Pricing is by custom quote after we assess fit, so we do not publish package prices. You can see how we approach Google Ads management in London, Ontario, or contact us for a quote and we will tell you honestly whether we are the right fit.
If you are comparing channels before you commit, our breakdown of Google Ads vs Facebook Ads covers where each one fits. If you are weighing outside help, what a Google Ads agency costs sets out what to expect.
A simple tracking checklist
Before you spend another dollar on ads, run through this list:
- Each conversion action has a clear name and a single purpose.
- Only real business outcomes are set as primary.
- The Google tag or Tag Manager container (with Conversion Linker) is on every page.
- Phone calls are tracked, with a minimum duration that fits your business.
- Your domain is verified for call tracking.
- Enhanced conversions are switched on for your lead form, where it applies.
- You tested each conversion yourself and saw it recorded.
- Someone checks the numbers against your leads at least monthly.
- You have a way to mark which leads became paying jobs, ready for import.
If you can tick all nine, your account is ahead of most.
FAQ
How can I track conversions in Google Ads?
Create a conversion action in your account, then install the Google tag or use Google Tag Manager with a Conversion Linker tag. The tag records the ad click and reports the action when it happens on your site. Test it by completing the action yourself.
How do I set up conversion tracking for phone calls?
Create a call conversion action, set a minimum call duration, and add the Google tag and phone snippet to your site. The snippet shows ad visitors a Google forwarding number so calls can be tied to the click. Verify your domain first to avoid disapprovals.
How do I check conversions on Google Ads?
Open your conversion actions and confirm each one shows as recording. Then look at the Conversions column, which reflects the actions you chose to include. Compare those totals with your own inbox and call log for the same period.
When should I use conversion tracking?
From the first day you spend on ads. It shows which ads lead to valuable actions like quote requests or signed contracts. It also gives automated bidding the signal it needs to optimize toward your goals.
Does it cost anything to use Google Ads conversion tracking?
The tracking tool itself is free inside Google Ads. What it costs you is setup time or the cost of someone doing it properly. For help with your account, contact us for a custom quote.
Sources
- How Google Ads tracks website conversions, Google Ads Help
- Prove ad impact with conversion measurement, Google (Canada)
- Ads Measurement and Conversion Tracking, Google
- Different ways to track conversions, Google Ads Help
- Set up your web conversions, Google Ads Help
- Set up your phone call conversions, Google Ads Help
- Set up tracking calls to a phone number on a website, Google Ads Help
- About importing call conversions, Google Ads Help
- Measure conversions and key events, Google Tag Platform
- Configure the Google tag for enhanced conversions for leads, Google Ads Help
Recommended
- Google Ads vs Facebook Ads: which should you run?
- Google Ads for Real Estate Agents: A Complete Practical Guide
- Broad Match vs Phrase Match in Google Ads: Which to Use
- Google Ads Budget: How Much to Spend in Canada
Sources
- a purchase, a sign-up or a phone callsupport.google.com
- measuring which ads drive valuable actions like purchases or signed contractsbusiness.google.com
- you do this with a site-wide Google tag, or with Google Tag Manager plus a Conversion Linker tagsupport.google.com
- URL-based tracking for page loads or code-based tracking for complex interactionssupport.google.com
- uses a gtag event call of the type "conversion"developers.google.com
- misconfiguring primary and secondary conversion actions can prevent the algorithm from optimizing campaign performance effectivelysupport.google.com
- create a conversion action, set a minimum call duration, and install the Google tag and phone snippetsupport.google.com
- verifying domain ownership, such as by linking Google Search Console to Google Adssupport.google.com
- matched with Google Ads click datasupport.google.com
- use hashed user-provided data in a privacy-safe waybusiness.google.com
- the associated Google tag automatically captures relevant form interaction eventssupport.google.com
