<b>Q: With Consent Mode v2 on, are the users who reject cookies just gone from GA4?</b>

<b>Q: With Consent Mode v2 on, are the users who reject cookies just gone from GA4?</b>

A: Not entirely. They're sent as cookieless pings, then Google models the gap.
— With Consent Mode v2 in 'denied' state, GA4 still receives anonymous signals (no client ID, no cookies).
— If your property qualifies (enough daily traffic and consented baseline), GA4 fills the missing conversions via <b>behavioral/conversion modeling</b>.

Check eligibility: Admin → Data display → look for 'Consent mode' status, and the modeled-data indicator on conversion reports.

Below the traffic threshold, modeling won't kick in and you'll genuinely undercount.

TL;DR: Rejected users become cookieless pings; with enough volume GA4 models them back in.

Got a GA4 question? Drop it 👇