Check whether user-data markers are visible at conversion time

Why this happens

Next checks

These answer the questions this one tends to raise.

• Enhanced Conversions Readiness CheckerIs this conversion path ready to support Google Ads Enhanced Conversions?
• Google Ads Conversion Tracking CheckerDoes my Google Ads conversion fire once with the value and order ID it needs?
• Form Conversion Tracking CheckerIs this form set up to record a real submission instead of a click or validation error?

How this check works

So you can trust the result — and your developer can verify it.

1. 1

   We capture Google Ads conversion requests

   The public page is loaded in an isolated browser, and every Google Ads conversion request is recorded.

2. 2

   We check each request for user-data markers

   We look for the parameters Google's tag uses to carry user-provided data, including hashed email and phone fields and the user_data payload. The check is per request, so you can see when one conversion carries data and another doesn't.

3. 3

   We redact everything

   Only the presence of a marker is recorded. No email, phone or hashed value is read into the report, logged or retained.

Common causes and fixes

The tag fires before user data is set

If the conversion fires on page load and the user_data variable is pushed later, the request goes out empty. Push user data to the data layer first, then fire the conversion.

Automatic collection can't find the field

The automatic option reads the email from the page. If the form field is renamed, hidden or inside an iframe, nothing is found. Switch to the manual or code option and pass the value explicitly.

Thank-you page never receives the email

The visitor typed their email on the previous page. Store it at submission time (in the data layer or session storage) so the conversion page can send it.

Consent blocks user data

With Consent Mode v2, user-provided data is withheld when ad_user_data is denied. Check the Consent Mode v2 Implementation Tester for your page's consent state.

Frequently asked questions

Do you see or store my customers' data?

No. The scan records only whether a user-data parameter name exists on the request. No values are captured.

What if only some conversions carry user data?

Then those conversion actions or pages are configured differently. The report lists each request so you can find which tag is missing it.

Why not just use Google Ads diagnostics?

Google Ads reports match quality after the fact and in aggregate. This check shows, on a specific page, whether the data is attached at all.

Does this work with server-side tagging?

Only for the browser-to-server-container leg if it uses recognisable Google Ads parameters. Requests sent from your server to Google are not visible.

Which tool should I run first?

If you don't know whether a conversion fires at all, start with the Enhanced Conversions Readiness Checker, which covers the conversion and the click ID too.