I am trying to configure a conversion tracking, the process includes a HubSpot form submission and e-mail reception with double opt-in link and click (the double opt-in link url is not hosted in the website domain so the GTM conversion tracking is not an option).
As far as I understood, Goog Ads API might be an option but I couldn’t find the guideline for my case yet. Could someone help? It can be any alternative way if you do have an idea.
Thanks in advance