I Set Up GA4.Form Submissions Stayed Invisible.
GA4 doesn't automatically track form submissions the way Universal Analytics did. I realized this after three weeks of staring at conversion data that made no sense. The platform captures page views and basic events, but if you want to know when someone actually fills out a contact form, you have to tell it to listen.
The fix is an event. GA4 needs you to fire a custom event when the form submits, either through Google Tag Manager or directly in your site code. I use GTM because it doesn't require developer changes, but both work. You set a trigger (form submission), name the event something clear like "contact_form_submit," and GA4 starts recording it. Google's event setup guide walks through the mechanics.
Once the event is firing, you can see submissions in your conversion data and even build conversion tracking into your reports. Without it, you're flying blind. Leads are coming in, but your analytics don't know it happened.
Worth trying: Open GA4, go to Events, and search for "form_submit" or whatever you named the event. If nothing shows up in the last 7 days, your form isn't wired to GA4 yet. That's your next 30 minutes of work.
