Google Analytics 4 and Tag Manager

Google Analytics 4 (gtag.js)

Easiest: on the Scripts tab, add https://www.googletagmanager.com/gtag/js?id=G-XXXXXXX in the Analytics category, plus a second inline script in the same category:

window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-XXXXXXX');

Then remove any GA snippet from your site's code. GA4 now loads only after the visitor allows analytics.

Google Tag Manager

Keep your GTM container on the page as usual — Consentful sets Consent Mode v2 defaults to denied before it loads, and sends an update when the visitor chooses. Inside GTM:

1. Open Admin → Container settings and turn on Enable consent overview.
2. For each Google tag, the built-in consent checks already apply.
3. For non-Google tags (Meta, Hotjar…), set Additional consent checks to require ad_storage or analytics_storage — or move those tags into Consentful's Scripts tab instead.

Sources

• Google Tag Platform: Set up consent mode