Google
Google Consent Mode v2
Denied-by-default consent signals, then updates when visitors choose - so measurement can stay coherent while respecting consent.
What it does
Consent Mode tells Google tags whether storage-based measurement is allowed. v2 expands the signals your CMP should map to banner categories (analytics, ads, personalization, etc.).
- - Typical pattern: strict defaults before GTM executes, then
consent updateafter the visitor accepts, rejects, or customizes categories. - -
wait_for_updategives the banner time to apply the user choice. - - Load your CMP script first so defaults exist before downstream tags evaluate consent.
CookieWise handles
- - Consent default and update flows aligned with your categories
- - Granular preference changes reflected in measurement signals
- - Technical checklist in the full docs for GTM validation
Deep dives
Use these in order: commercial overview first, then the step-by-step GTM guide.