Install order with Google Tag Manager

Why theConsent must load before GTM, and how to verify the order.

Why order matters

Google Consent Mode v2 requires gtag('consent', 'default', ...) to be called before any GA4 or Ads tags fire. theConsent emits these defaults synchronously on load.

Correct order

<!-- 1. theConsent (must be first) -->
<script async src="https://cdn.gettheconsent.com/v1/banner.js?siteKey=..."></script>

<!-- 2. GTM -->
<script>(function(w,d,s,l,i){...})(...);</script>

Common mistake

Pasting theConsent after GTM. The compliance verifier flags this — fix by moving theConsent to the top of Head Code.