Hi @goncalo-cruz thanks for your question. Site Kit now allows you to easily connect with Google Ads (formerly Adwords) and place your Ads Conversion ID on your website. For more information on this and how to set this up you can check out our Managing Google Ads documentation.
Once connected, Site Kit will place a Google Ads code snippet on your site which will look similar to the one below:
<!-- Google Ads snippet added by Site Kit -->
<script src="https://www.googletagmanager.com/gtag/js?id=AW-********" id="google_gtagjs-js" async></script>
<script id="google_gtagjs-js-after">
window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments);}
gtag("js", new Date());
gtag("set", "developer_id.dZTNiMT", true);
gtag("config", "AW-********");
</script>
Please let me know if you have any further questions I can help with on this.