Track Form Conversions with Google Adwords

There are two possible solutions for this:

1. Import Google Analytics Event to Google Adwords

For this solution, you will use the Convert Forms Google Analytics addon to track form events as Goals in your Google Analytics account, which you can later import to Google Ads.

1. Log in to your Joomla administrator
2. Go to Components → Convert Forms
3. Open the form builder
4. Go to Behavior → Google Analytics Tracking 
5. Enable the Google Analytics Tracking option. To learn more details, visit the How to Track Form Events with Google Analytics guide.
6. Add the Conversion event as a Goal in your Google Analytics account.
   • Sign in to Google Analytics
   • Click Admin, navigate to the Goals section, and click New
   • In the Goal setup (1st step) select Custom and click Continue
   • In the Goal Description (2nd step), specify a goal name, select Event in the Type option, and click Continue.
   • In the Goal Details (3rd step), set the Action option to Conversion
   • Click Save
7. Link the Google AdWords and Google Analytics accounts, and import the goal into Google AdWords.This page shows you how to do this.

2. Fire Google Ads Conversion Tracking with Google Tag Manager

This method requires a bit of extra work, and you will need to be familiar with the core Google Tag Manager concepts.

1. Log in to your Google Tag Manager account
2. Create a new Custom Event Trigger to track form submission events. Eg: myFormSubmission.
3. Create a Google Ads Conversion Tracking Tag and choose the Custom Event as the firing trigger.
4. Log in to your Joomla administrator
5. Go to Components → Convert Forms
6. Open the  form editor
7. Open the Design → Advanced panel
8. Place the following JavaScript code into the Custom Code option. This will fire the event when the form is submitted.
   

   var form = document.querySelector('#cf_1');
   form.addEventListener('success', function(event) {
       dataLayer.push({
           'event': 'myFormSubmission'
       });
   });