My marketing team would love to have anonymized lead data sent to Google Ads for accurate conversion information via Google's Enhanced Conversions for both web and leads.
Enhanced Conversions work by sending hashed lead details to Google, which then matches that data to its own records . This can be implemented throughout frontend means as at least one user has tried, but more and more users and browsers are preventing tracking scripts and pixels from loading. Similar to Facebook/Meta's Conversions API, incorporating Enhanced Conversions through the Google Ads API will help track conversions more reliably, and help further optimize ad campaigns.
HubSpot already uses the Google Ads API to allow users to manage Google ad campaigns in HubSpot, and HubSpot forms already capture lead information necessary to send to Google for EC data, so it seems like there's existing runway here for implementation.