What is a Secondary Conversion in Google Ads?
A customer visits your website and does several useful things before becoming a customer.
They might:
View a product → Add to cart → Download information → Purchase
You may want to measure all of these actions—but you may not want Google Ads to optimize toward all of them.
That is where secondary conversions are useful.
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What is a Secondary Conversion?
A secondary conversion action is a conversion action that you want to measure and observe, but generally do not want to use as the main conversion goal for Google Ads bidding.
In simple terms:
Secondary conversions are useful actions you want to track without making them your main optimization target.
For example:
- Newsletter signup
- Brochure download
- Add to cart
- Product view
- Certain button clicks
- Early-stage enquiries
The exact choice depends on your business.
Primary vs Secondary
This is the easiest way to remember it:
Primary conversion
"Optimize my advertising toward this."
Secondary conversion
"Measure this, but do not make it my main optimization signal."
For example:
Purchase → Primary
Add to cart → Secondary
Newsletter signup → Secondary
Product view → Secondary
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Why Would I Use a Secondary Conversion?
Because not every useful action is the final goal.
Suppose you sell shoes.
A customer:
Clicks advertisement
↓
Views running shoes
↓
Adds shoes to cart
↓
Starts checkout
↓
Purchases
The first three actions are useful information.
But your real business objective is:
Purchase
So you might configure:
Purchase → Primary
Add to cart → Secondary
Begin checkout → Secondary
Product view → Secondary
This lets you understand the funnel without necessarily telling Google Ads to optimize equally toward every step.
Are Secondary Conversions Still Counted?
Yes, they can still be measured and reported.
That is an important point.
Secondary does not mean "do not track it."
It means you are separating the action from the main conversion goal used for optimization.
So you can still use secondary conversion data to understand:
- Customer behavior
- Funnel performance
- Campaign engagement
- Landing-page performance
- Where users drop out
Do Secondary Conversions Affect Bidding?
Generally, secondary conversion actions are not used for standard Google Ads bidding optimization when they are not included as a campaign goal.
That is the key reason for setting an action as secondary.
You can measure it without making it the main target you are asking Google Ads to optimize toward.
A Simple Example
Imagine your campaign gets:
1,000 clicks
And you record:
300 product views
100 add-to-carts
20 purchases
You could configure:
Purchase → Primary
Add to cart → Secondary
Product view → Secondary
Now Google Ads knows that:
20 purchases
are the main outcome you care about, while the other numbers help you understand what happened before the purchase.
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Secondary Conversion Example for a Service Business
Suppose you run a consulting business.
Your website tracks:
Contact form submission
Phone call
Brochure download
Newsletter signup
You might decide:
Qualified lead → Primary
Phone call → Primary
Brochure download → Secondary
Newsletter signup → Secondary
Why?
Because a qualified lead or valuable phone call is much closer to actual business revenue.
A brochure download is useful, but it does not necessarily mean someone is ready to become a customer.
Secondary Conversions and Micro-Conversions
Secondary conversions are often used for micro-conversions.
A micro-conversion is an action that indicates progress toward a larger goal.
For example:
Page view
↓
Product view
↓
Add to cart
↓
Checkout
↓
Purchase
You might track all five.
But only:
Purchase
may be your primary conversion.
The others can provide useful funnel information.
Should Add-to-Cart Always Be Secondary?
Not necessarily.
It depends on your business objective and campaign strategy.
For most ecommerce businesses where the ultimate goal is sales, purchase is usually the stronger primary business outcome.
But there can be situations where another action is genuinely the most important measurable outcome.
The right question is not:
"Which conversion is easiest to track?"
It is:
"Which action represents success for my business?"
What Happens If I Make Everything Primary?
This is where things can get messy.
Suppose you mark:
Page view → Primary
Button click → Primary
Add to cart → Primary
Newsletter signup → Primary
Purchase → Primary
Now you are telling Google Ads that all of these actions are important optimization goals.
But they are clearly not equal in business value.
A page view is not normally equivalent to a purchase.
That is why separating primary and secondary actions can make your conversion strategy much clearer.
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Secondary Conversion vs "All Conversions"
Do not confuse these terms.
Google Ads can report a broader set of conversion actions in All conversions.
A secondary conversion can still be useful in that broader measurement.
But your campaign's main optimization goals are determined by the conversion actions included as goals for that campaign.
So:
Secondary ≠ invisible
and:
All conversions ≠ all primary conversions
Secondary Conversion vs Primary Conversion
Here is the quick comparison:
| Feature | Primary | Secondary |
|---|---|---|
| Track the action | ✅ | ✅ |
| Useful for analysis | ✅ | ✅ |
| Main optimization signal | ✅ | Usually no |
| Good for micro-conversions | Sometimes | Often |
| Example | Purchase | Add to cart |
What About Data-Driven Attribution?
Do not mix up attribution with primary/secondary settings.
Primary/Secondary answers:
"Which conversion actions should be used as campaign goals?"
Data-driven attribution answers:
"How should credit be distributed among eligible advertising interactions?"
They are two different parts of Google Ads measurement.
What About Enhanced Conversions?
Enhanced conversions are also different.
Secondary conversion
= how you classify the conversion action for measurement and optimization.
Enhanced conversions
= a feature that can provide additional first-party customer information signals to improve conversion measurement.
For example:
Purchase
→ Primary conversion
→ Enhanced conversions enabled
Those two settings can coexist.
What About a Blogger or Blogspot Website?
If you are using Blogger/Blogspot, secondary conversions can be particularly useful if your site has several kinds of interactions.
For example:
Contact form submission → Primary
Newsletter signup → Secondary
Download → Secondary
Important button click → Secondary
If your objective is generating business enquiries, you generally do not want Google Ads treating every page interaction as equally important.
How Should I Decide Whether a Conversion Is Secondary?
Ask:
Question 1
Does this action directly represent business success?
Yes → Consider Primary.
Question 2
Is this mainly an indication that someone is interested?
Yes → Consider Secondary.
Question 3
Would I want Google Ads to find more people specifically because they perform this action?
No → Secondary may be appropriate.
Final Thoughts
A secondary conversion is a useful conversion action that you want to measure without making it the main optimization goal for your Google Ads campaign.
Think of it like this:
Primary = destination
Secondary = milestones along the journey
For an online store:
Product view → Secondary
Add to cart → Secondary
Checkout → Secondary
Purchase → Primary
That structure gives you both sides of the picture: what customers do along the way and what ultimately matters to your business.
Track secondary conversions for insight—but keep your primary conversions focused on the actions that genuinely define success.
Tags
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