Set up GTM, connect GA4, add the Conversion Linker, and track your first conversion — without editing code every time.
Google Tag Manager is the free tool that lets you measure what people do on your website — purchases, leads, calls — without editing your code for every change. Done right, it's the foundation your ads and analytics stand on. Done wrong, it quietly breaks your data for months.
This beginner's guide takes you from nothing to a working setup: install GTM, connect GA4, add the Conversion Linker, and track your first conversion, all tested before it goes live. No prior experience needed.