GTM Data Layer Form Tracking Setup

Form submissions are often the primary conversion on lead generation websites — but GTM's built-in form trigger misses AJAX-submitted forms, redirects before the trigger fires, and forms inside iframes. A data layer-based form tracking approach fires a structured event exactly when the form submission is confirmed, with form name, form ID, lead data (hashed if PII), and conversion value — giving you reliable, consistent form conversion data across every marketing platform.