Paid Ads

Consent Mode

Consent Mode adapts how measurement tags behave based on user consent choices (for example analytics vs ads storage).

Updated 2026-01-24

Definition

Consent Mode adapts how measurement tags behave based on user consent choices (for example analytics vs ads storage).

Example

If a user declines ads storage, ad tags run in a restricted mode and conversions may be modeled.

How to use it

  • Implement it with a clear consent banner and store choices consistently.
  • Expect modeled conversions to differ from direct measurements; reconcile with blended metrics.
  • Keep consent status synced across analytics and ad platforms.

Common mistakes

  • Firing tags before consent and trying to fix it later.
  • Assuming modeled conversions are the same as observed conversions.

Measured as

Measure Consent Mode with a fixed attribution window, conversion event, and spend basis before comparing campaigns or creative tests.

Misused when

  • Firing tags before consent and trying to fix it later.
  • Assuming modeled conversions are the same as observed conversions.

Operator takeaway

  • Implement it with a clear consent banner and store choices consistently.
  • Expect modeled conversions to differ from direct measurements; reconcile with blended metrics.
  • Keep consent status synced across analytics and ad platforms.
  • Use Consent Mode only inside a stable attribution rule, conversion definition, and time window so campaign comparisons stay honest.
  • If performance changes, check whether the metric moved for a real business reason or because the measurement setup changed underneath you.

Next decision

  • Read UTM + GA4 attribution: practical tracking for paid ads (without lying to yourself) if the decision depends on interpretation, policy, or trade-offs beyond the raw formula.
  • Decide which report owns Consent Mode before comparing campaigns, channels, or creative tests.

Where to use this on MetricKit

Guides