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 update after the visitor accepts, rejects, or customizes categories.
  • - wait_for_update gives 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.