How to track form submit conversion in Google ads?

English Forms
1

Hey everyone

I’m trying to setup a form submit conversion on a popup like when someone clicks on button a popup will show and user will fill up the form.

I’m using Brevo’s Form i embedded form in website using iframe code

anyone can tell me what wrong I’m doing?

2

Hi Ayaan,

To track form submissions as conversions in Google Ads using Brevo, you can use Google Tag Manager (GTM) and Google Ads conversion tracking:

  1. Set up a « Thank You » Page:
    If possible, redirect users to a unique « Thank You » page after they submit the form. You can track visits to this page as conversions in Google Ads. In Brevo, this may require adding a redirect to the form settings so that the user is sent to a specific page after submitting.
  2. Install Google Tag Manager (GTM):
    If you haven’t already, install GTM on your website. You can then use GTM to manage the form tracking and add conversion tags.
  3. Create a Conversion Action in Google Ads:
    Go to Google Ads, create a new conversion action by selecting Website as the conversion type, and follow the prompts. This will generate a conversion tracking tag.
  4. Track Form Submissions with GTM:
    a. In GTM, create a trigger to track form submissions. You can either use a Form Submission trigger or a Page View trigger if you are redirecting to a « Thank You » page.
    b. Then, set up a tag to fire the Google Ads conversion tracking code when the form is submitted or when the user reaches the « Thank You » page.
  5. Testing:
    After setting everything up, submit a test form to check that the trigger fires and that conversions are being recorded in Google Ads.

If you’re not sure about any of these steps, let me know! I can walk you through any part of the setup in more detail.

3

i appreciate your answer but i want to track conversion on popup form submission when someone clicks on submit button or when the success message is visible

4

To track conversions on a pop-up form submission when someone clicks the submit button or when the success message is visible, you can use Google Tag Manager (GTM) in combination with custom event tracking in Brevo.

Here’s how to set it up:

  1. Set up Google Tag Manager (GTM) on your site:
    Make sure you have GTM installed on your website where the Brevo form is embedded.

  2. Create a Custom Trigger for the Form Submit Button:

    • In GTM, go to Triggers and create a new trigger.
    • Choose Click - All Elements as the trigger type.
    • Configure the trigger to fire on the click of the form’s submit button by targeting its specific CSS selector or ID. You can inspect the submit button on your form using your browser’s developer tools to find this.
    • Alternatively, you can use the « Form Submission » trigger if the form doesn’t have a distinct button.

  3. Track the Success Message:
    If the form displays a success message after submission, you can track that event using another custom trigger:

    • In GTM, create a new Element Visibility trigger.
    • Set it to fire when the success message is visible. You’ll need to find the CSS class or ID of the success message (e.g., .success-message).

  4. Create a Google Ads Conversion Tag:

    • In GTM, create a new Tag for Google Ads Conversion.
    • Add the conversion tracking ID and label from your Google Ads account.
    • Set this tag to fire either on the form submit trigger or the success message visibility trigger you’ve created.

  5. Test the Setup:

    • Use GTM’s preview mode to ensure that the triggers and tags are firing correctly when the form is submitted or the success message is displayed.
    • Submit the form and check that the conversion is recorded in Google Ads.

Let me know how it goes!

5

i tried all ways and now i’m building thank you page

6

You’re running into one of the trickiest parts of conversion tracking: the iframe.

When you embed a form using an iframe from a service like Brevo, you’re essentially placing a window to a separate website onto your own page.

Because of a security measure in web browsers called the same-origin policy, the code on your main page - including your Google Tag Manager script - can’t easily see or interact with what’s happening inside that iframe, which is why a standard GTM Form Submission trigger likely won’t work to track the conversion.

One of the most robust and reliable ways to track a confirmed form submission, especially from an iframe, is to use a server-side solution, which completely bypasses the limitations of the client-side browser tracking that you’re currently facing.

This involves a stack of tools like the Brevo API + Google Ads API + Google Analytics Data API + Google Tag Manager, potentially utilizing a server-side tagging environment like Stape or Google Cloud Platform.

The reason this is a good solution is because you’re moving the conversion validation from the user’s browser, which can be blocked by ad blockers or complicated by iframes, to a system you control on the server.

Brevo, once it successfully processes the form, can use its API or a webhook to send a confirmation signal to your server-side GTM container (Stape or GCP).

From there, your server-side GTM can then use the Google Ads API to report a conversion directly to Google Ads, typically as a Lead or Purchase Standard Event, and use the Google Analytics Data API to send a corresponding event to your GA4 property via the Measurement Protocol.

This method ensures that the conversion is attributed only upon a confirmed submission on Brevo’s side, provides a more reliable data stream, and gives you total control over the data sent to Google’s platforms, which is the gold standard for conversion tracking, especially when dealing with complex setups like third-party iframes and popups.