GA4 and GTM running in anonymous mode

[rafaelstz]

Description

I suggest running GA and GTM following Google's best practices, which follow the latest international privacy rules such as GDPR, LGPD, CCPA, etc.

The method allows GTM and GA4 to run privately until the user's cookies consent. It will make GA4 and GTM run in privacy mode and block only GTM's scripts that need consent. It will allow us to show options and let the customer decide which cookies they want to accept, such as necessary, analytics, preferences, and marketing.

This method has been used by third-party vendors such as OneTrust, Osano, Cookiebot, Cookie Yes, Didomi... It can be easily applied to Magento / Adobe Commerce to facilitate the usage of the native cookie consent feature.

This is what Google's best practices say about running GA and GTM.

Load Google tags in all cases, not only if the user consents. If consent is denied, Google receives cookieless pings. In Google Analytics 4 properties, cookieless pings enable behavioral and conversion modeling to fill the gaps in your data.

Expected behavior

• If cookie consent is disabled
• • Set gtag consent as granted by default
• If cookie consent is enabled
• • Set gtag consent as denied by default
• • Show consent banner
• • • If cookie consent is accepted via banner
• • • • Set gtag consent as granted to collect historical customer behavior's data
• • • If cookie consent is declined via banner
• • • • Don't do anything, since the default was set to declined
• Add GTM / GA4 script

Benefits

• Use just GTM and Magento OOTB cookie consent instead of a third-party tool to block scripts partially.
• Use GA4 with data privacy mode by default.
• Complying with GDPR, LGPD, CCPA, and other privacy laws without abdicating all your scripts on GTM that don't need user consent.
• Ask permission to cookies for different purposes, such as necessary, analytics, preferences, and marketing.

Additional information

Learn more about consent mode → https://support.google.com/analytics/... Check out the demo code for this series → https://github.com/googleanalytics/ga... Youtube Set up consent mode in Google Analytics → https://www.youtube.com/...

Release note

No response

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