Learn how enhanced conversions use hashed customer data to improve Google Ads measurement, when to use them, and how to verify the setup.
For a full campaign walkthrough, watch Darlington's Google Ads Course 2026.
Enhanced conversions help Google Ads measure more of the purchases or leads your existing conversion tag may miss. They do this by using customer information supplied during a conversion—such as an email address or phone number—in a privacy-conscious matching process.
The information is normalized and hashed before it is sent to Google. Google then attempts to match it with signed-in users so an ad interaction can be connected to the completed action more accurately.
Enhanced conversions do not replace a working conversion tag. They strengthen the measurement you already have.
Enhanced conversions in plain English
Suppose someone clicks a Google ad on a phone, later returns on a laptop, and completes a purchase using an email address. Browser limits may make the journey difficult to connect.
With enhanced conversions, the business can send a protected version of the customer-provided email alongside the purchase event. Google may be able to connect the purchase to the earlier ad click.
The business sees a more complete conversion report, and bidding receives better information about which clicks became customers.
Enhanced conversions for web vs. enhanced conversions for leads
Google uses similar names for two different setups.
| Setup | Best for | What happens |
|---|---|---|
| Enhanced conversions for web | Purchases, sign-ups, and other actions completed online | Hashed customer data supplements the website conversion tag |
| Enhanced conversions for leads | Leads that are qualified or sold later | Website lead data helps match a later offline result back to the ad interaction |
If the final outcome happens on the website, start with enhanced conversions for web. If someone submits a lead and the business later qualifies or closes that person in a CRM, enhanced conversions for leads is usually the more relevant path.
What information can be used?
Depending on the implementation, Google can use customer-provided information such as:
- Email address
- Phone number
- Name and address
Only send data the customer actually provided and that your business is allowed to use. The page should have an appropriate privacy notice, consent should be handled where required, and the setup must follow Google’s customer-data policies.
Do not place raw personal information in URLs, analytics labels, or visible page code.
What enhanced conversions can improve
A correct implementation can help with:
- Recovering conversions that are difficult to observe with browser-only tracking
- Connecting activity across devices
- Improving the conversion data available to automated bidding
- Reducing unexplained gaps between real orders or leads and Google Ads reports
- Making revenue and customer reporting more complete
This does not guarantee more sales. It improves the information used to judge and optimize the campaigns. Better information is valuable only when the original conversion action represents a result the business cares about.
What enhanced conversions do not fix
Enhanced conversions will not repair:
- A tag that fires on the wrong page
- Duplicate purchases or leads
- Spam form submissions
- Calls that are counted before they connect
- Wrong conversion values
- A campaign optimizing toward weak actions
- A broken checkout or landing page
Fix standard Google Ads conversion tracking first. Then use enhanced conversions to improve coverage.
How to set up enhanced conversions for web
The exact steps depend on whether the site uses the Google tag, Google Tag Manager, Google Analytics 4, or a supported partner.
The normal process is:
- Confirm the main conversion action works correctly.
- Open Goals, then Conversions, in Google Ads.
- Select the website conversion action.
- Turn on enhanced conversions when the option is available.
- Choose the implementation method.
- Identify the customer-provided fields available when the conversion happens.
- Configure automatic collection, manual selectors, a data layer, or a supported partner integration.
- Test the conversion.
- Publish the tag changes.
- Review diagnostics after Google processes enough events.
Automatic collection is simpler, but it may not work well with unusual forms, embedded checkouts, or iframes. Manual or code-based setups provide more control but should be tested by someone comfortable with tags and customer data.
How to check whether enhanced conversions work
Do not treat “enabled” as proof that the setup is healthy.
Check these items:
- The base conversion still fires once at the correct time.
- Customer-provided data is available when the tag fires.
- Google Ads does not show an enhanced-conversions error.
- Email addresses and phone numbers are formatted consistently.
- No raw personal data appears in a URL or debugging output.
- The account receives recent conversions after the change.
- The reported conversion value still matches the order or lead value.
Google Ads diagnostics may take time to update. Keep a dated test record with the order, lead, conversion action, and tag result so the implementation can be checked later.
Should every business use enhanced conversions?
Most advertisers with meaningful website conversions should evaluate them. They are especially useful when:
- Customers submit an email address or phone number
- Purchases happen across more than one device
- Browser-based reporting misses part of the customer journey
- Automated bidding depends on accurate conversion data
- Lead quality or final sales are recorded after the initial form
They are less urgent when the business has almost no conversions, the existing tag is unreliable, or the action being measured has little connection to revenue.
Enhanced conversions and privacy
Hashing is a security measure, not permission to collect anything available.
Use only the fields needed for the measurement setup. Review consent and privacy requirements for the locations where the business operates. Limit access to tag settings, avoid sending sensitive information, and follow Google’s customer-data policies.
If the site operates in regions with consent requirements, the consent setup must be considered alongside the tag implementation.
The simple rule
Get the conversion right first, then improve the match.
Enhanced conversions can help Google connect more ad interactions to real purchases and leads. They cannot turn a weak conversion action into a useful business outcome.
Before enabling them, confirm the event, value, and primary or secondary conversion setting are correct.
Google Ads enhanced conversions FAQ
Do enhanced conversions replace the Google Ads conversion tag?
No. They supplement an existing conversion setup with hashed customer-provided data.
Does Google receive a customer’s plain email address?
The data used for matching should be normalized and hashed before transmission under the supported setup. Follow Google’s implementation instructions and test that raw personal information is not exposed elsewhere.
Are enhanced conversions only for ecommerce?
No. Enhanced conversions for web can support online actions, while enhanced conversions for leads can connect later qualified leads or sales to ad interactions.
Can I set this up through Google Tag Manager?
Yes. Google provides automatic, manual, and code-based Tag Manager methods, depending on the type of enhanced conversion and the site.
How quickly will reporting change?
Diagnostics and reporting need processing time and enough eligible conversions. Do not judge the setup from one test event or expect an immediate performance increase.
Sources
- Enhanced conversions best practices — Google Ads Help
- Configure Google Tag Manager for enhanced conversions for leads — Google Ads Help
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