Primary vs Secondary Conversions in Google Ads: How They Affect Lead Quality
Primary and secondary conversions in Google Ads control which actions are used for bidding, reporting and campaign optimisation.
For lead generation businesses, this setting can have a major impact on lead quality. If the wrong actions are marked as primary conversions, Google Ads may start optimising towards weak signals such as button clicks, page views, form starts, short calls or low-quality enquiries.
That can make the account look better than it really is. The campaign may show more conversions, a lower cost per conversion and stronger platform performance, but the business may still receive poor leads that do not become customers.
A primary conversion should usually be an action that shows real commercial intent. This might include a qualified form submission, meaningful phone call, booked consultation, quote request, appointment booking or imported qualified lead from a CRM.
A secondary conversion is still useful to track, but it should usually be used for observation rather than bidding. These actions may include page views, button clicks, scroll depth, form starts, newsletter sign-ups, brochure downloads or softer engagement signals.
The key question is simple: would you want Google Ads to find more people who complete this action?
If the answer is yes, it may be suitable as a primary conversion. If the action is useful to understand but not strong enough to guide bidding, it should usually be treated as a secondary conversion.
This guide explains the difference between primary and secondary conversions in Google Ads, how they affect Smart Bidding, which actions should usually be primary, which actions should usually be secondary and how the wrong setup can waste budget by training Google Ads to chase poor-quality leads.
Quick Answer: What Is the Difference Between Primary and Secondary Conversions?
Primary conversions in Google Ads are the actions you want Google Ads to use for bidding and optimisation. Secondary conversions are actions you still want to track, but they should usually be used for reporting and analysis rather than guiding Smart Bidding.
For lead generation campaigns, primary conversions should usually be the actions closest to real business value. These may include qualified form submissions, meaningful phone calls, quote requests, booked consultations, appointment bookings or imported qualified leads from a CRM.
Secondary conversions are useful supporting signals. These may include button clicks, page views, scroll depth, form starts, brochure downloads, video views, newsletter sign-ups or other softer engagement actions.
The difference matters because Google Ads uses primary conversion data to decide who to bid for. If weak actions are marked as primary, Google may optimise towards people who are likely to click buttons, view pages or complete low-intent actions instead of people who are likely to become valuable leads.
This can make performance look better inside Google Ads while lead quality gets worse. The account may show more conversions and a lower cost per conversion, but the business may still receive poor enquiries.
The best setup is usually simple: use primary conversions for actions that show clear commercial intent, and use secondary conversions for actions that help you understand behaviour without polluting the bidding signal.
Primary vs Secondary Conversions: Which Actions Should You Use?
The best way to choose between primary and secondary conversions is to ask how closely each action connects to real business value.
A primary conversion should usually be an action that shows clear commercial intent. For lead generation campaigns, this may include a qualified form submission, meaningful phone call, quote request, booked consultation, appointment booking, demo request or imported qualified lead from a CRM.
These actions are strong enough to guide bidding because they tell Google Ads what kind of enquiry the business wants more of.
Secondary conversions should usually be actions that are useful to track but not strong enough to optimise towards. These may include page views, button clicks, scroll depth, form starts, video views, newsletter sign-ups, email clicks, brochure downloads, live chat opens or visits to key pages.
These actions can still provide useful insight. They can help you understand whether users are engaging with the website, where they drop off and which parts of the journey may need improvement. But they should not usually be treated as the main success signal.
The risk comes when weak actions are marked as primary. If Google Ads is told that a button click, page view or form start is a valuable conversion, it may start finding more users who are likely to complete those easier actions. That does not necessarily mean they are likely to become customers.
For ecommerce campaigns, purchases or transactions should usually be primary conversions because they directly represent revenue. Add-to-cart events, checkout starts, product views or email sign-ups may be useful secondary conversions unless they are part of a specific campaign objective.
For lead generation campaigns, the strongest primary conversion is usually the action closest to revenue that can be tracked reliably. If the business can track qualified leads, booked appointments or offline sales outcomes, those are usually stronger signals than raw form submissions.
However, the setup should match the business reality. A small business may need to start with all form submissions as a primary conversion if that is the best reliable action currently available. Over time, the goal should be to move closer to qualified enquiries, booked appointments, quotes, sales opportunities or customers.
The rule is simple: primary conversions should guide bidding because they represent outcomes the business genuinely wants more of. Secondary conversions should support analysis without polluting the optimisation signal.
Why Conversion Setup Matters in Google Ads
Conversion setup matters in Google Ads because it tells the platform what success actually looks like.
Without accurate conversion tracking, you are mostly judging performance by clicks, impressions, click-through rate, cost per click and spend. Those metrics can be useful, but they do not show whether the campaign is generating real business value.
For lead generation campaigns, conversion setup is especially important because not every action has the same commercial value. A page view is not the same as a quote request. A button click is not the same as a completed enquiry form. A short phone call is not the same as a serious conversation with a potential customer. A form submission from someone outside your service area is not the same as a qualified lead from your ideal customer.
When weak actions are treated as primary conversions, Google Ads may optimise towards the wrong behaviour. The account may generate more conversions, but those conversions may be low-intent, poor quality or unlikely to become customers.
This can make reporting look better than reality. The conversion column may increase, cost per conversion may fall and the campaign may appear more efficient, while the business still struggles with weak enquiries and poor sales outcomes.
Smart Bidding makes this even more important. Automated bidding strategies such as Maximise Conversions and Target CPA use conversion data to decide who to bid for. If the conversion setup is wrong, the bidding strategy may learn from the wrong signals.
A good conversion setup separates actions by intent. Strong commercial actions should usually be primary conversions. Softer engagement actions should usually be secondary conversions. This keeps the bidding signal cleaner while still allowing the business to understand the wider customer journey.
For small businesses, this can make a major difference. If budget is limited, you do not want Google Ads spending money to find more people who click buttons, view pages or complete low-quality actions. You want it to find more people who are likely to become relevant, contactable and valuable enquiries.
Conversion setup is not just a technical task. It is a commercial decision that affects bidding, reporting, lead quality and how confidently the business can scale paid advertising.
What Are Primary Conversions in Google Ads?
Primary conversions in Google Ads are the conversion actions you want the platform to treat as important for bidding, optimisation and main performance reporting.
In simple terms, a primary conversion is the action you are telling Google Ads to find more of.
For lead generation businesses, primary conversions should usually represent the strongest reliable signals of commercial intent. These might include qualified form submissions, meaningful phone calls, quote requests, booked consultations, appointment bookings, demo requests, sales enquiries or imported qualified leads from a CRM.
A primary conversion does not always need to be a final sale. Many businesses do not complete the full sale online. A bathroom company, estate agent, insurance broker, training provider, consultant, clinic, solicitor, accountant or home improvement business may generate an enquiry first and close the sale later.
In those cases, the best primary conversion is usually the trackable action closest to real business value. If you can track qualified leads, that is usually stronger than tracking every form submission. If you can track booked consultations, that may be stronger than tracking a basic enquiry. If you can track meaningful calls, that is usually better than counting every phone button click.
This matters because Google Ads uses primary conversions to guide bidding. If the primary conversion is weak, Smart Bidding may optimise towards users who complete low-value actions. If the primary conversion is strong, Google Ads has a better chance of finding people who are likely to become useful enquiries.
For example, a form submission from someone in the right location, asking about the right service and showing genuine intent is a stronger signal than a newsletter sign-up, page view, button click or short phone call.
The key question is:
Would you want Google Ads to find more people who complete this action?
If the answer is yes, the action may be suitable as a primary conversion. If the answer is no, or the action is useful but too soft to prove real intent, it should usually be treated as a secondary conversion.
For small businesses, choosing the right primary conversions is one of the most important parts of improving Google Ads performance. It affects bidding, reporting, cost per lead, lead quality and the confidence you have when scaling the account.
Example: How the Wrong Primary Conversion Can Damage Lead Quality
A common problem in Google Ads is when the account is technically tracking conversions, but the wrong action is being used as the primary conversion.
For example, a business may count every form submission, phone button click, email click, brochure download or page visit as a primary conversion. On the surface, this can make the campaign look successful because Google Ads can see plenty of conversion activity.
The problem is that those actions do not all have the same value.
A completed quote request from someone in the right location is not the same as a brochure download from someone casually researching. A meaningful phone call is not the same as a phone button click. A qualified lead is not the same as a low-budget enquiry, spam form submission or contact from outside the service area.
If weak actions are treated as primary conversions, Google Ads may start optimising towards people who are more likely to complete those easy actions. That can increase conversion volume, but it may also reduce lead quality.
This is where many lead generation accounts become misleading. The account may show more conversions, a lower cost per conversion and stronger reported performance, while the business receives fewer useful enquiries.
For example, a campaign may learn that users who click buttons or download brochures are easy to convert. If those actions are primary conversions, Smart Bidding may start prioritising similar users. But those users may not be ready to request a quote, book a consultation or become customers.
A better setup would use the strongest reliable enquiry action as the primary conversion. That may be a qualified form submission, call over a meaningful duration, quote request, booked appointment or imported qualified lead.
Softer actions can still be tracked as secondary conversions. They can help explain user behaviour and landing page engagement, but they should not usually be allowed to guide the main bidding strategy.
The question is not simply, “Are conversions tracking?”
The better question is, “Are we asking Google Ads to optimise towards actions that actually create sales opportunities?”
What are secondary conversions in Google Ads?
Secondary conversions are conversion actions that are useful to track, but usually should not be used as the main bidding signal.
They are helpful for observation, diagnosis and reporting.
For example, you may want to track pricing page views, brochure downloads, form starts, click-to-call button clicks, newsletter signups, live chat opens or visits to a key landing page. These actions can help you understand user behaviour, but they may not be strong enough to guide bidding.
A secondary conversion can still be useful.
It can show whether users are engaging with the website. It can help diagnose landing page issues. It can show whether an advert is attracting early-stage interest. It can support funnel analysis. It can help you understand what happens before a proper lead is generated.
But secondary conversions should not usually be treated as the same quality of signal as a real enquiry.
For small businesses, this distinction is important because many accounts are overloaded with soft conversions. The business tracks too many actions as if they all matter equally. The reports look busy, but the actual lead quality is poor.
Secondary conversions are not bad. They just have a different job.
They are for understanding behaviour. Primary conversions are for guiding optimisation.
When Should You Use Secondary Conversions in Google Ads?
A secondary conversion in Google Ads should usually be used when you want to observe an action without making it the main action your campaigns optimise towards.
This is useful because not every website action deserves to influence bidding, budget decisions or campaign performance.
For lead generation campaigns, this distinction is important. A business may want to track several actions, such as form submissions, phone calls, button clicks, page views, form starts, email clicks, brochure downloads, appointment bookings or live chat opens. But those actions do not all have the same value.
A completed quote request is usually more valuable than a button click. A qualified phone call is usually more meaningful than a short call. A booked consultation is usually stronger than a simple page view.
Secondary conversions help you keep visibility on supporting actions without treating them as the main measure of success. For example, you may want to see how many people click a phone number, start a form, download a guide or visit a key page, but you may not want Google Ads to optimise the campaign around those softer actions.
The mistake many advertisers make is counting too many weak actions as primary conversions. This can make the account look more successful than it really is. It can also give automated bidding the wrong signal.
If Google Ads is told that a low-value action is a primary conversion, the campaign may try to generate more of that action rather than more qualified enquiries.
A better approach is to use primary conversions for the actions that most closely match the business goal, such as completed enquiry forms, quote requests, consultation bookings, qualified calls or imported offline conversions. Secondary conversions can then be used for useful supporting signals that help you understand behaviour but do not guide the main optimisation strategy.
For example, a PPC account might use a completed lead form as a primary conversion and a form start as a secondary conversion. A local service business might use calls over a certain duration as primary conversions and shorter calls as secondary conversions. A business using a CRM might use qualified leads or converted leads as primary conversions and raw form submissions as secondary conversions once offline conversion tracking is in place.
The key question is simple: would you want Google Ads to find more people who complete this action?
If the answer is yes, the action may be suitable as a primary conversion. If the answer is no, but the action is still useful to observe, it may be better as a secondary conversion.
Why Primary and Secondary Conversions Matter for Smart Bidding
Primary and secondary conversions matter because Google Ads Smart Bidding uses conversion data to decide which users, searches, devices, locations and auctions are most likely to produce the results you are asking for.
That means the quality of your conversion data affects the quality of the decisions Google Ads can make.
If your primary conversions are strong, Smart Bidding has a clearer signal. It can look for patterns that are more closely connected to valuable business outcomes. If your primary conversions are weak, Smart Bidding may learn from behaviour that does not actually create revenue.
This is where lead generation accounts often run into problems.
A business may set every form fill as a primary conversion. But some form fills are spam. Some are outside the service area. Some are too low budget. Some want a service the business does not provide. Some never answer the phone. If all of those are counted equally, Google Ads may optimise towards more form fills, not necessarily better customers.
The issue becomes worse when low-intent actions are also marked as primary.
If page views, button clicks, form starts and low-quality calls are all included as primary conversions, the account may become noisy. Google Ads is being asked to optimise towards a mixture of real leads and weak engagement signals.
That can make reports look healthy while business results feel disappointing.
This is why primary and secondary conversions should be treated as part of the bidding strategy, not just the tracking setup.
The question is not simply, “Can we track this action?”
The better question is, “Should Google Ads use this action to decide who to bid for?”
Common Mistakes With Primary and Secondary Conversions
One of the most common mistakes in Google Ads is marking too many actions as primary conversions.
This can make the account look healthier than it really is because Google Ads reports more conversions, but many of those actions may not have any real business value.
Another mistake is using button clicks as primary conversions. A button click can be useful to track, but it does not prove that someone became a lead. If someone clicks a call button but does not complete the call, or clicks a form button but does not submit the form, the campaign may be optimising towards incomplete actions.
Page views are another weak primary conversion signal. A visit to a thank-you page can be useful if it only appears after a real form submission, but standard page views should not usually be used for bidding. They show traffic, not intent.
Businesses also make the mistake of treating every form submission equally. A contact form, quote request, brochure download and newsletter sign-up may all have different commercial value. If they are all treated as primary conversions with the same importance, Google Ads may optimise towards the easiest conversions rather than the most valuable ones.
A further issue is not reviewing conversion actions after changes to the website, landing pages or tracking setup. Forms, buttons, thank-you pages and call tracking can change over time. If the conversion setup is not checked regularly, campaigns may continue bidding towards outdated or broken actions.
Another common mistake is assuming that because conversion tracking is installed, the account is measuring the right thing. Tracking can be technically working but commercially misleading.
For lead generation campaigns, the best setup is usually simple: use primary conversions for actions that show real buying intent, and use secondary conversions for useful supporting signals that help with reporting, diagnosis and optimisation.
The Common Mistake: Treating Every Action as a Conversion
One of the most common mistakes in Google Ads accounts is treating every measurable action as a conversion.
This usually happens with good intentions. The business wants more data. The agency or advertiser wants to show activity. The account manager wants to understand the full funnel. So more and more actions are added.
Contact form submissions are tracked. Phone number clicks are tracked. Page views are tracked. Form starts are tracked. Button clicks are tracked. Newsletter sign-ups are tracked. Live chat opens are tracked. Downloads are tracked.
Tracking these actions is not always the problem.
The problem is when they are all treated as primary conversions.
When that happens, Google Ads reporting can become inflated. The “Conversions” column may look strong because it includes actions that are much easier to generate than real leads. The cost per conversion may look low. The bidding strategy may appear efficient. But the business may not see enough meaningful enquiries or customers.
For example, a person who clicks a phone number but does not complete a call is not necessarily a lead. A person who views a pricing page is not necessarily a prospect. A person who starts a form but does not submit it is not a conversion. A person who downloads a guide may be interested, but may not be ready to buy.
These actions can be useful secondary signals. They can help you understand interest and behaviour. But they should not automatically be used to guide bidding.
If Google Ads is trained to chase low-friction actions, it may find more users likely to take low-friction actions.
That is not the same as finding customers.
What Should Be Primary for Lead Generation Campaigns?
For lead generation campaigns, primary conversions should usually be the strongest reliable indicators of commercial intent.
The best primary conversion will depend on the business and the tracking available.
For a local service business, a primary conversion might be a completed quote request, a contact form submission from a relevant service page or a phone call that lasts long enough to suggest a genuine enquiry.
For a professional services firm, it might be a booked consultation, a completed enquiry form, a qualified call, a demo request or a CRM-imported qualified lead.
For a B2B company, it might be a sales enquiry, a meeting booked, a qualified lead or an opportunity created in the CRM.
For a healthcare, clinic or appointment-based business, it might be an appointment request, booked consultation or phone call over a meaningful duration.
For a home improvement or trades business, it might be a quote request, survey booking, call from a service page or form submission with enough information to qualify the project.
The best version is always the action closest to revenue that can be tracked reliably.
If you can only track all form submissions today, that may be the starting point. But over time, the goal should be to move closer to qualified leads, booked appointments, quotes, sales opportunities or customers.
A primary conversion should answer this question:
If Google Ads brings us more of this action, is that likely to help the business grow?
If the answer is unclear, the action may not deserve to be primary.
What Should Usually Be Secondary?
Secondary conversions should usually include actions that are useful to understand but not strong enough to optimise towards.
These might include page views, key page visits, form starts, phone button clicks, brochure downloads, video views, scroll depth, live chat opens, email link clicks, newsletter sign-ups, soft downloads or other micro-actions.
These actions can still be useful.
A pricing page view might show commercial interest. A form start might reveal intent, but also friction if people do not complete it. A brochure download might be useful for nurturing. A live chat open might show engagement. A click on an email address might indicate interest.
But these actions are usually not the final goal.
If they are set as primary, they can pollute the bidding signal. Google Ads may start optimising towards users who engage lightly rather than users who become leads.
The phrase “secondary” should not be seen as unimportant. It simply means the action has a different role.
Primary conversions tell Google Ads what to optimise for.
Secondary conversions help you understand what is happening around that main goal.
For small business lead generation, this separation is essential.
Should Phone Calls Be Primary or Secondary Conversions?
Phone calls need careful handling in Google Ads.
For many small businesses, phone calls are extremely valuable. A call from someone searching for your service may be more serious than a form fill. Local service businesses, trades, clinics, insurance brokers, consultants and professional services firms often rely heavily on phone enquiries.
But not every phone call is a good lead.
Some calls are too short. Some are from existing customers. Some are wrong numbers. Some are supplier calls. Some are job seekers. Some are people asking for support rather than becoming a new customer. Some are outside the service area.
This means phone calls can be primary or secondary depending on the quality of the tracking.
A click on a phone number should not automatically be treated as a strong primary conversion. Someone may tap the number accidentally or not complete the call.
A call from an ad or website that lasts beyond a meaningful threshold may be more useful. For example, a call over 60 seconds or 90 seconds may be more likely to represent a genuine enquiry, depending on the business.
Even then, call duration is not perfect. A long call can still be poor quality. But it is usually better than counting every phone click as equal.
The best setup is to combine call tracking with lead quality feedback. If calls are being recorded in a CRM or call tracking system, the business can mark whether they were qualified, unqualified, existing customer, sales enquiry or support issue.
If meaningful calls are a strong source of business, they may deserve primary status. If calls are noisy or mostly low value, they may need stricter rules or secondary treatment until the signal is cleaner.
Why Custom Goals Need Extra Care
Custom goals can be useful in Google Ads, but they can also create confusion.
A custom goal allows you to choose specific conversion actions for a campaign to optimise towards. This can be helpful when different campaigns have different objectives. For example, one campaign may focus on quote requests, while another focuses on appointment bookings.
The risk is that custom goals can override the clean structure you thought you had.
A conversion action may be marked as secondary at the account level, but if it is included in a custom goal used by a campaign, it may still influence reporting and bidding for that campaign.
This is why auditing conversion actions alone is not enough.
You also need to check which goals each campaign is using.
Some accounts look clean at first glance. The conversion actions appear to be labelled correctly. Primary actions are primary. Secondary actions are secondary. But when you look at campaign settings, a custom goal may include actions that should not be guiding bidding.
For small businesses, this matters because the account can accidentally optimise towards weak signals even when the conversion summary looks organised.
A proper conversion audit should review conversion actions, account-default goals, campaign-specific goals and custom goals together.
The question is not just “what is marked primary?”
The question is “what is this campaign actually optimising towards?”
How Poor Conversion Setup Can Make Reports Look Better Than Reality
Poor conversion setup can make Google Ads performance look better than it actually is.
This is one of the most dangerous problems because the account may appear healthy.
The campaign has conversions. The cost per conversion looks acceptable. The conversion rate looks strong. Reports show growth. But the business owner says the leads are weak, the sales team is frustrated or revenue is not improving.
This happens when the reported conversions do not reflect real business outcomes.
For example, a campaign may show 100 conversions in a month. But if 40 of those were button clicks, 20 were short calls, 15 were weak form fills, 10 were existing customer enquiries and only 15 were genuine new business opportunities, the report is misleading.
The platform is not necessarily lying. It is reporting what it was told to report.
The problem is that the business and the ad account are using different definitions of success.
Google Ads may be optimising towards “conversions”, but the business needs customers. If the conversion setup does not connect those two things, performance becomes distorted.
This is why conversion architecture is so important.
A clean account should make it easy to separate hard outcomes from soft signals. It should show which actions are driving bidding, which actions are being observed and which actions are helping diagnose the journey.
If the “Conversions” column is filled with weak actions, the business may be making decisions on the wrong data.
A Simple Conversion Framework for Small Business Lead Generation
At Invaro Media, the cleanest way to think about conversion setup is as a signal hierarchy.
Not every action has the same level of value. The closer an action is to revenue, the stronger the signal.
At the top of the hierarchy are business outcomes. These include won customers, closed deals, revenue, booked jobs, signed contracts or sales. These are the strongest signals, but they are not always available directly inside Google Ads without offline conversion tracking or CRM integration.
Below that are qualified sales outcomes. These include qualified leads, booked appointments, surveys arranged, quotes requested, proposals sent or sales opportunities created. These are usually very strong signals for lead generation accounts.
Below that are initial lead actions. These include form submissions, meaningful phone calls, consultation requests or enquiry forms. These can be useful primary conversions if later-stage data is not yet available, but they should be monitored for quality.
Below that are engagement actions. These include page views, pricing page visits, form starts, button clicks, downloads and live chat opens. These are usually secondary signals.
This hierarchy helps keep bidding aligned with real value.
The aim is to use the strongest reliable signal as primary and keep weaker signals secondary.
That does not mean every small business needs advanced offline tracking on day one. But it does mean the account should not treat every action as equal.
Start with the best available signal. Then improve the setup over time.
Example: A Small Business Account With Noisy Conversions
Imagine a small business running Google Ads for lead generation.
The account tracks six conversion actions:
Contact form submission
Phone number click
Call from ad
Pricing page view
Brochure download
Form start
All six are set as primary.
On paper, the account looks busy. It reports a healthy number of conversions each month. The cost per conversion looks low, and the campaign appears efficient.
But when the business reviews the leads, the picture is weaker. Many phone number clicks did not become calls. Pricing page views did not become enquiries. Brochure downloads were early-stage researchers. Form starts did not submit. Some calls were existing customers. Only a small percentage of the reported conversions were real sales opportunities.
The issue is not that these actions should never be tracked.
The issue is that they should not all be treated as primary bidding signals.
A cleaner setup might treat qualified form submissions and meaningful calls as primary conversions. Pricing page views, brochure downloads, form starts and phone button clicks could remain as secondary conversions for observation.
That would make reporting more honest and give Smart Bidding a cleaner signal.
The account may show fewer conversions after the change, but those conversions would be more meaningful.
That is a good thing.
It is better to have fewer conversions that represent real opportunities than more conversions that create false confidence.
How to Audit Your Primary and Secondary Conversions
A conversion audit should begin by listing every conversion action in the account.
Do not assume the setup is clean because the campaign is spending or reporting conversions. You need to look at each action and ask what it really means.
For each conversion action, ask whether it represents a real business outcome, a qualified lead, an initial enquiry or a soft engagement signal.
Then ask whether you would want Google Ads to find more people who take that action.
If the answer is yes, it may be a primary conversion. If the answer is no, or only sometimes, it may be better as secondary.
Next, review the conversion source. Is the action coming from the website, phone calls, imported offline data, app activity or another source? Is the tracking reliable? Is the action firing once per enquiry, or is it double-counting? Does the thank-you page only load after a real form submission? Are calls counted only when they last long enough to suggest intent?
Then review the conversion category and goal. Make sure actions are grouped sensibly and that campaign goals are not accidentally including weak actions.
Next, check campaign settings. Are campaigns using account-default goals, campaign-specific goals or custom goals? Is any campaign optimising towards a conversion action that should only be observed?
Finally, compare platform conversions with business outcomes. Do the numbers match what the sales team sees? Are reported conversions becoming qualified leads, quotes, bookings or customers? If not, the conversion setup may need to be reworked.
A good audit does not only check whether tracking is installed.
It checks whether tracking is useful.
What to Do Before Changing Conversion Settings
Changing conversion settings can affect campaign performance.
If a campaign has been optimising towards a certain set of primary conversions, changing those signals may alter how Smart Bidding behaves. In some cases, performance may fluctuate while the campaign adjusts.
That does not mean you should avoid fixing a bad setup. It means changes should be made carefully.
Before making changes, document the current setup. Record which conversion actions are primary, which are secondary, which goals campaigns are using and what recent performance looks like.
Then decide what the correct structure should be.
Do not remove useful tracking data without thinking. In many cases, soft actions should remain tracked as secondary conversions. The aim is not to delete all micro-conversions. The aim is to stop weak actions from steering bidding.
If the account has been relying heavily on weak primary conversions, expect the reported conversion volume to drop when the setup is cleaned up. This can feel uncomfortable, but it may be more honest.
It is better to optimise towards fewer meaningful conversions than lots of weak ones.
Where possible, make changes in a controlled way. Monitor performance closely. Review lead quality. Watch conversion volume, cost per conversion, search terms, impression share and lead outcomes.
The goal is to align the account with business reality, not simply make the reports look tidy.
How Offline Conversions Can Improve the Signal
Offline conversions can help lead generation accounts move beyond initial form fills.
Many small businesses do not sell immediately online. A user may click a Google Ad, submit a form, speak to the business, book a consultation, receive a quote and become a customer later.
If Google Ads only sees the first form submission, it cannot easily distinguish a weak lead from a strong one.
Offline conversion tracking can help send later-stage outcomes back into Google Ads. For example, a business may import when a lead becomes qualified, when a quote is issued, when an appointment is completed or when a sale is won.
This gives the platform better information.
Instead of optimising only towards raw leads, the account can start learning from the leads that actually mattered.
For small businesses, this can be a major step forward. It helps connect advertising data with sales reality. It also helps reduce the risk of bidding strategies chasing easy leads that never convert into customers.
Offline conversion tracking is more advanced than basic form tracking, and it needs a clean process. Lead source data needs to be captured correctly. CRM or spreadsheet data needs to be reliable. Uploads need to be consistent.
But even a simple lead quality feedback process is better than treating every lead as equal.
The more accurately you can show Google Ads which leads became valuable, the better your optimisation decisions can become.
Enhanced Conversions for Leads
Enhanced conversions for leads are another way to improve the quality and durability of lead tracking.
The idea is to help connect lead data captured on your website with later offline outcomes. This can support more accurate reporting and help improve the connection between ad interactions and sales outcomes.
For small businesses, this matters because many valuable conversions happen after the first enquiry.
A person may submit a form today and become a customer weeks later. If that journey is not connected back to the original ad click, the account may undervalue the campaign that produced the lead.
Enhanced conversions for leads can help strengthen that connection when implemented properly.
This is not always the first step for every small business. Many businesses need to fix basic conversion tracking first. They need reliable form tracking, call tracking, clean primary and secondary settings, and a process for recording lead outcomes.
But once the basics are in place, enhanced conversions for leads and offline imports can help move the account towards more valuable optimisation.
The long-term goal is simple: do not only tell Google Ads who filled in a form. Tell it which leads became useful.
Why Conversion Setup Affects Lead Quality
Conversion setup does not just affect reporting. It affects the type of leads Google Ads tries to generate.
If an account is optimising towards weak primary conversions, such as button clicks or low-intent form fills, Google Ads may start finding more users who are likely to complete those easy actions. The campaign may show more conversions, but the business may still receive poor enquiries, unqualified leads or people who are not ready to buy.
This is a common problem in lead generation. The Google Ads account can look successful because cost per conversion appears low, but the sales team may see a very different picture. Leads may be irrelevant, too early in the buying journey, outside the service area or unlikely to become customers.
A stronger setup focuses primary conversions on actions that show genuine commercial intent. For example, a completed quote request, a qualified phone call or a booked appointment gives Google Ads a better signal than a simple page view or button click.
The best PPC accounts do not only ask, “How many conversions did we get?”
They ask, “Which conversions became real opportunities, and which actions should Google Ads optimise towards next?”
Primary vs Secondary Conversions for Performance Max
Performance Max campaigns make clean conversion signals even more important.
Performance Max uses automation across multiple Google channels. Because of that, the quality of the conversion goal matters. If the campaign is optimising towards weak actions, it may find more weak actions at scale.
This can be a problem for lead generation businesses.
A Performance Max campaign may generate conversions, but those conversions may include low-quality forms, weak calls or soft actions if the conversion setup is not controlled. The campaign can look active while lead quality remains poor.
For this reason, Performance Max should not be launched into a messy conversion account.
Before using Performance Max, a business should review its primary conversions, secondary conversions, conversion goals, lead quality tracking and landing pages. It should know which actions are valuable and which actions are only useful for observation.
Performance Max is not the problem by default. Automation can be useful. But automation needs clear instructions.
If you ask it to optimise towards the wrong signals, it may do exactly that.
How to Know If Your Conversion Setup Is Wrong
There are several warning signs that your conversion setup may be misleading the account.
One sign is that Google Ads reports strong conversion volume, but the business receives few serious enquiries. Another sign is that cost per conversion looks low, but cost per qualified lead is high. Another is that the account has many conversion actions marked as primary, especially actions that are not real leads.
You may also see conversions from actions such as page views, button clicks, short calls, form starts or soft downloads sitting in the same reporting column as real enquiries. Another warning sign is a gap between agency reports and sales feedback. If reports say performance is improving, but the business says lead quality is poor, the conversion setup should be reviewed.
It is also a concern if no one can explain which conversion actions are used for bidding. Every business owner should be able to ask a simple question: What exactly are we asking Google Ads to optimise towards? If the answer is unclear, the account may need a conversion audit.
A Cleaner Setup for Small Businesses
A cleaner setup starts with simplicity.
First, define the most valuable lead actions. These should usually become primary conversions. For many small businesses, this may be qualified form submissions, meaningful phone calls, booked appointments or imported qualified leads.
Second, keep useful engagement actions as secondary. Track them, but do not let them drive bidding unless there is a clear strategic reason.
Third, review campaign goals. Make sure each campaign is optimising towards the right actions. Do not assume account-default settings are always correct.
Fourth, improve call tracking. Count meaningful calls rather than every phone click where possible.
Fifth, connect lead outcomes back to the ad account. This might start with a spreadsheet or CRM notes. Over time, it may develop into offline conversion imports or enhanced conversions for leads.
Sixth, review performance based on qualified outcomes. Do not judge the account only by reported conversions. Look at qualified lead rate, quote rate, close rate and customer value.
This is how Google Ads becomes more aligned with business growth.
The setup does not need to be perfect from day one. But it should be moving in the right direction.
How Invaro Media Approaches Conversion Setup
At Invaro Media, conversion tracking is not treated as a box-ticking exercise.
It is one of the foundations of paid media performance.
A campaign cannot be judged properly if the tracking is weak. A bidding strategy cannot be trusted if the conversion signals are polluted. A report is not useful if it counts soft actions as if they were business outcomes.
That is why conversion setup should be reviewed before increasing spend.
For small businesses, the key question is not just whether conversions are being tracked. The key question is whether the right conversions are being used to guide optimisation.
The best accounts separate business outcomes from diagnostic signals. They treat qualified enquiries differently from soft engagement. They use secondary conversions to understand behaviour without letting every micro-action influence bidding. They connect lead quality feedback to campaign decisions.
This is what makes paid media more measurable.
If your Google Ads campaigns are producing conversions but not enough good leads, the problem may not be the ads themselves. It may be the signal you are giving the platform.
Related Google Ads and Conversion Tracking Guides
If you are reviewing your Google Ads conversion setup, these related guides can help you improve the wider PPC account.
If you want to understand how tracking connects to real enquiry quality, read our guide on how to track leads from paid ads properly: https://www.invaromedia.co.uk/resources/how-to-track-leads-from-paid-ads
If you want to improve bidding decisions, read our Google Ads bid strategy guide: https://www.invaromedia.co.uk/resources/google-ads-bid-strategy-guide
If lead quality is the issue, read our guide on offline conversions in Google Ads: https://www.invaromedia.co.uk/resources/how-to-set-up-offline-conversions-google-ads
If you want to reduce wasted spend in search campaigns, read our guide to the Google Ads search terms report: https://www.invaromedia.co.uk/resources/google-ads-search-terms-report
If you want to choose better search intent, read our guide on how to choose Google Ads keywords: https://www.invaromedia.co.uk/resources/how-to-choose-google-ads-keywords
If you want to improve account structure, read our guide to Google Ads account structure for lead generation: https://www.invaromedia.co.uk/resources/google-ads-account-structure-lead-generation
If you want to reduce cost per lead without damaging lead quality, read our guide on how to reduce cost per lead in Google Ads: https://www.invaromedia.co.uk/resources/reduce-cost-per-lead-google-ads
If you want a wider review of your account, you can request a PPC audit here: https://www.invaromedia.co.uk/ppc-audit
Need Help Checking Your Google Ads Conversion Setup?
Primary and secondary conversions are small settings that can have a major impact on Google Ads performance.
If the wrong actions are used for bidding, campaigns can quickly start optimising towards cheap activity instead of real commercial outcomes.
For lead generation businesses, the goal is not just to increase conversion volume. The goal is to give Google Ads the right signals, improve lead quality and understand which enquiries are actually turning into sales opportunities.
At Invaro Media, we review conversion tracking, bidding signals, campaign structure, search terms, landing pages and lead quality as part of our PPC audit process.
If you are unsure whether your Google Ads account is optimising towards the right actions, request a PPC audit here:
https://www.invaromedia.co.uk/ppc-audit
FAQs About Primary and Secondary Conversions in Google Ads
What is a primary conversion in Google Ads?
A primary conversion is an action that is used for bidding, reporting and campaign optimisation in Google Ads. These should usually be the most commercially valuable actions, such as qualified form submissions, meaningful phone calls, booked appointments, quote requests, demo requests, sales enquiries or purchases.
What is a secondary conversion in Google Ads?
A secondary conversion is an action that is tracked for reporting and analysis but is not usually used for bidding. These can include softer actions such as button clicks, page views, scroll depth, video views, newsletter sign-ups, form starts, brochure downloads or other engagement signals.
What is the difference between primary and secondary conversions?
Primary conversions are used to guide bidding and optimisation. Secondary conversions are tracked for observation and reporting. The key difference is that primary conversions tell Google Ads what to optimise for, while secondary conversions help you understand behaviour around the main goal.
Should form submissions be primary or secondary conversions?
High-quality lead form submissions should usually be set as primary conversions. However, softer forms such as newsletter sign-ups, brochure downloads, low-intent enquiries or unqualified form submissions may be better as secondary conversions unless they regularly turn into qualified leads.
Should phone calls be primary conversions in Google Ads?
Phone calls should usually be primary conversions when they represent genuine commercial intent. For example, calls from potential customers asking about pricing, availability, appointments or quotes are usually strong primary conversion actions. Short calls, accidental clicks or support calls may be better treated differently.
Can button clicks be primary conversions?
Button clicks should usually be secondary conversions. A button click does not always mean someone became a lead or customer. If button clicks are used as primary conversions, Google Ads may optimise towards people who click but do not actually enquire.
Can page views be primary conversions?
Standard page views should not usually be primary conversions because they do not prove commercial intent. A thank-you page view can be useful if it only fires after a real form submission, but normal page views are usually better used as engagement signals rather than bidding signals.
Why do primary and secondary conversions affect lead quality?
Primary conversions tell Google Ads which actions to optimise towards. If weak actions are marked as primary conversions, campaigns may generate more low-quality conversions instead of real sales opportunities. A better setup helps Google Ads focus on actions that are more likely to produce qualified leads.
How do primary conversions affect Smart Bidding?
Smart Bidding uses conversion data to decide who to bid for and how aggressively to bid. If primary conversions are meaningful, Smart Bidding has a stronger signal. If primary conversions are weak, Smart Bidding may optimise towards cheap actions that do not become customers.
Should all conversions be marked as primary?
No, not all conversions should be marked as primary. Only the actions that show strong commercial intent should usually be primary. Softer actions can still be tracked as secondary conversions so they support analysis without polluting the bidding signal.
What should be secondary conversions for lead generation?
Secondary conversions for lead generation may include form starts, phone number clicks, pricing page views, brochure downloads, video views, live chat opens, newsletter sign-ups, scroll depth or other micro-actions. These can help explain behaviour but should not usually guide bidding.
Can the wrong conversion setup waste Google Ads budget?
Yes, the wrong conversion setup can waste budget because Google Ads may optimise towards actions that are easy to generate but not commercially valuable. This can make the account look efficient while the business receives poor-quality leads.
How often should conversion actions be reviewed?
Conversion actions should be reviewed whenever you change your website, forms, landing pages, call tracking, thank-you pages or campaign objectives. They should also be checked during regular PPC audits to make sure campaigns are still optimising towards the right business outcomes.
Do offline conversions help with primary and secondary conversion setup?
Yes, offline conversions can help by showing Google Ads which leads became qualified, booked appointments, sales opportunities or customers. This can improve the quality of the bidding signal and help the account move beyond raw form submissions.
Can a PPC audit help fix primary and secondary conversions?
Yes, a PPC audit can help identify whether the account is using the right primary conversions, which actions should be secondary and whether Smart Bidding is being guided by clean data. This can improve reporting, lead quality and budget efficiency.
