How to integrate Google Ads Tag

I’m trying to track the conversion of my Google Ads (NOT Google Analytics). I do not see any Webflow official article about how to do this. I followed some instructions that came up on Google, including a post from this forum, and added the Google Ads Tag code snippet to Custom Code → Header Code. A day after that I checked Google Ads and found that the tag still wasn’t connected to the webflow.

The conversion is measured as a “request demo” form submission.

Please advise.

Here is my site Read-Only: