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Kilian MüllerGoogle Ads & SEO since 2011, 15 years of experience. You talk to me directly.+49 611 7163 8128
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FAQ · 11 answers
Consent Mode v2, cookie banners and consent rates: answers on why data is missing, what Google Ads warns about and how tracking works compliantly in the EU.
To get started
A cookie scanner flags tracking without consent when tags fire before the consent default, ignore consent mode, or send cookieless pings.
02Analytics data drops after a consent banner because only consenting visitors are measured. How to find setup errors and when GA4 models the gap.
03Consent Mode v2 fails with a cookie plugin if it sends no default state or not all four consent values. Causes, correct setup and how to test it.
04Google Ads shows modeled conversions only if Consent Mode is set up correctly and the account reaches 700 ad clicks in 7 days per country and domain.
05Cookies before consent come from hard-coded tags, Tag Manager tags without consent checks or a late banner. How to find the cause and fix it.
06A consent banner blocks Google Tag Manager when its script blocker stops the container or basic consent mode is set up. How to fix and test it.
07Google misreads consent status when the default is set too late, the update never arrives or v2 parameters are missing. How to test and fix it.
08Consent mode warning in Google Ads: the default state is missing or too late, no update follows the banner, or v2 parameters are missing. How to check it.
09EU visitors disappear when consent mode v2 signals are missing or Google tags are blocked. How to check your consent setup and recover data legally.
10Consent rates differ between desktop and mobile because of banner layout, in-app browsers and late consent updates. How to check and fix the gap.
11Advanced consent mode is only active if Google tags load before the banner choice and set a default state. How to check the setup and modeling thresholds.
Since Consent Mode v2, the quality of your data depends directly on how the cookie banner works with Google tags. If that connection is missing, you see fewer conversions, warnings in Google Ads or status messages that don't match your setup.
The answers explain what each setting does, how to spot a faulty setup and why consent rates can vary strongly by device. Tracking without consent is never the solution.
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In a free intro call we look at your account together and work out what needs doing on Consent Mode & tracking.
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