Event Snippet Google Ad Conversion Tracking Magento 2

Question

I am trying to figure out how to get Google Ad conversion tracking working in Magento 2.3.5 - the Google Ad API setting isn't available under admin area of this version. Universal Tracking Code already installed on every page.

So far I've added the following to the success.phtml file:

<?php
$OrderId = Mage::getSingleton('checkout/session')->getLastOrderId();
$Order = Mage::getModel('sales/order')->load($OrderId);
$incrementId = $Order->getIncrementId();
?>

<!-- Event snippet for Purchase conversion page -->
<script>
  gtag('event', 'conversion', {
      'send_to': 'AW-XXXXXXXX/XXXXXXXXXXX',
      'value': <?php echo number_format($Order->getSubtotal(),2,".",""); ?>,
      'currency': 'GBP',
      'transaction_id': <?php echo "'".$incrementId."'"; ?>
  });
</script>

I think the above code may work for Magento 1. Can anyone suggest an update for Magento 2?

Answer 1

Magento Devdocs Google AdWords

<!-- Google Code for Back to School Sale Conversion Page -->
   <script type="text/javascript">
   /* <![CDATA[ */
   var google_conversion_id = 999999999;
   var google_conversion_language = "en";
   var google_conversion_format = "3";
   var google_conversion_color = "ffffff";
   var google_conversion_label = "MlEYCOKBnGoQz6CZoAM";
   var google_remarketing_only = false;
   /* ]]> */
   </script>

   <script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
   </script>
   <noscript>
   <div style="display:inline;">
   <img height="1" width="1" style="border-style:none;" alt="" src="//www.googleadservices.com/pagead/conversion/872829007/?label=MlEYCOKBnGoQz6CZoAM&amp;guid=ON&amp;script=0"/>

   </noscript>