Consent Mode: One Year Later

Consent mode is no longer a compliance checkbox. It is now a central part of how accurate your measurement will be. A year after the v2 rollout, the patterns are clear — and many companies are still leaving signal on the table.

The biggest mistake we see is treating consent mode as a legal implementation. Legal teams approve the banner. Marketing teams assume the job is done. But the real work is in the consent rates, the consent-granted vs. consent-denied split, and the modelling eligibility that follows.

If your consent rate is below 60% in a key market, your modelled conversions will be thin and unstable. If your banner design is confusing, you are not just losing data — you are biasing it. Users who click 'reject all' may behave differently from users who click 'accept', and that gap can mislead your optimisation.

The teams that are winning have moved consent from the legal team to the measurement team. They test banner copy, placement, and timing. They segment consent rates by landing page, traffic source, and device. They know that better consent experience is better data quality.

Our recommendation: run a quarterly consent audit. Check consent rates, check modelled conversion volumes, and compare the behaviour of consenting vs. non-consenting users. Treat it as a performance lever, not a privacy burden.