- Consent Mode v2 passes four consent signals from your cookie banner to Google tags.
- It is needed for visitors in the EEA and UK to keep remarketing and measurement working.
- Advanced mode allows cookieless pings and conversion modelling; basic mode blocks tags until consent.
- Use a Google-certified consent platform and test with Tag Assistant.
What is Consent Mode v2?
Consent Mode is a way for your cookie banner to tell Google tags what each visitor agreed to. The tags then adjust their behaviour. Version 2 added two signals to the original two, so there are now four: ad_storage, analytics_storage, ad_user_data and ad_personalization. Your banner sets each one to granted or denied, and Google tags read those values on every page.
The first two control whether cookies are stored for ads and analytics. The new two control whether user data can be sent to Google for advertising, and whether it can be used for personalised ads such as remarketing. Without the new signals, Google treats the visitor as not having given consent for those uses. That is why sites with an older banner that only sends the original two signals can still lose audience and measurement data.
Who needs Consent Mode v2?
Any advertiser whose website or app gets visitors from the European Economic Area or the UK should implement it. Google's EU user consent policy covers these regions, and Google requires valid consent signals to use data from those visitors for measurement, remarketing and personalisation. Switzerland is treated in a similar way. If you are unsure whether you get such visitors, check the country report in Google Analytics.
That includes businesses based in Pakistan or the UAE if they target UK or European customers. Where you target only Pakistan or the Gulf, Consent Mode is not required by Google's EU policy, but it is still a sensible base, and local data protection laws may set their own rules. Consent Mode also works alongside the setup in our guide to conversion tracking in Google Ads.
What is the difference between basic and advanced mode?
Both are valid; they handle refused consent differently.
Basic mode | Advanced mode | |
|---|---|---|
Before the visitor chooses | Google tags do not load | Tags load with consent set to denied by default |
If consent is refused | Nothing is sent to Google | Cookieless pings are sent without identifiers |
Conversion modelling | Limited, general modelling | Advertiser-specific modelling from the pings |
Privacy footprint | Smaller | Larger, but no cookies without consent |
Typical fit | Strict legal advice, low traffic | Most advertisers who rely on Smart Bidding |
How do I choose a consent banner?
Your banner, called a consent management platform or CMP, collects the choice and passes it to Google. Google runs a CMP partner programme and recommends certified platforms for traffic from the EEA and UK. A certified CMP has built-in Consent Mode v2 support, which removes most of the custom coding.
Choose one that integrates with Google Tag Manager through a template, supports the languages you need, and lets visitors change their choice later. If your site serves several countries, check that the banner can show only where required, or show different wording by region. WordPress and Shopify both have certified options.
What happens without Consent Mode v2?
The effects build up quietly over weeks.
Remarketing lists shrink
UK and EEA visitors are not added to audience lists, so remarketing campaigns reach fewer people.
Conversions drop in reports
Conversions from visitors without consent signals are not recorded or modelled.
Weaker Smart Bidding
Bidding learns from fewer conversions, which can make targets harder to hit.
Enhanced conversions limited
User data cannot be used for visitors where ad_user_data consent is missing.
How do I test my setup?
Run these checks after any banner or tag change.
- Default stateLoad the site in a private window. In Tag Assistant, consent should show as denied before you click anything.
- Accept and refuseClick accept, then repeat and click refuse. Each signal should update correctly, including ad_user_data and ad_personalization.
- Tag behaviourIn basic mode, Google tags should not fire before consent. In advanced mode, they fire but without cookies.
- Google Ads diagnosticsCheck conversion action diagnostics for consent mode status after a few days of traffic.
- Every templateTest landing pages, checkout and thank-you pages, not only the home page.
How does this apply to Pakistani, Gulf and UK advertisers?
UK advertisers need Consent Mode v2 for their UK traffic, and should also follow UK GDPR and the rules on cookies set by the ICO. Pakistani agencies and exporters that run campaigns into the UK or Europe face the same requirement for those visitors, even though their business is based outside the region.
For campaigns aimed only at Pakistan, the UAE or Saudi Arabia, Google's EU policy does not apply, but the UAE and Saudi Arabia have their own data protection laws. A banner set to show only for UK and EEA visitors keeps the experience clean for local mobile users while protecting data from regulated regions. Ask a legal adviser which rules apply to your business.
How we handle this for clients
We start by checking where the site's traffic comes from and which regions need consent. Then we recommend a certified CMP that suits the platform, configure it in Tag Manager, and set default consent states by region. We usually advise advanced mode for accounts that rely on Smart Bidding, after the client has confirmed it with their own legal adviser.
Every page template is tested with Tag Assistant, and we review Google Ads diagnostics after launch. Consent work is part of our wider Google Ads management and our conversion tracking setup service, alongside enhanced conversions. When banners or site templates change later, we retest, because consent setups often break quietly after redesigns.

