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Mastering Consent Mode v2, GTM Server Side, and Conversion APIs for Resilient Digital Marketing

In the evolving landscape of digital marketing, where third-party cookies are becoming obsolete, innovative solutions like Conversion API from Facebook and Events Api for TikTok server side, along with Google’s Consent Mode v2 and Google Tag Manager (GTM) Server Side, are becoming increasingly crucial. These tools offer new ways to navigate the challenges of data privacy and user consent.

The decline of third-party cookies poses significant challenges for digital marketers, particularly in the realms of user tracking and personalized advertising. However, it also encourages a shift towards more privacy-centric approaches.


  • Enhanced User Privacy: Aligns with increasing data protection regulations and user demands for privacy.
  • Innovative Targeting Strategies: Encourages the use of first-party data and contextual advertising.

Take in Consideration:

  • Data Collection Limitations: Impacts the effectiveness of cross-site tracking and retargeting campaigns.
  • Dependency on First-Party Data: Necessitates robust data collection strategies, potentially leading to gaps in customer insights.

Facebook Conversion APIs & TikTok event API Server Side ):


  • Improved Data Accuracy: By sending conversion events directly from the server, these APIs ensure more reliable data collection, especially in a cookie-less environment.
  • Enhanced Privacy Compliance: Reduces reliance on browser-based tracking, aligning with privacy regulations.

Take in Consideration:

  • Technical Complexity: Implementation requires technical knowledge and integration with existing systems.
  • Dependence on Platform Ecosystems: Relies on specific platform ecosystems, which may limit flexibility.


  • Flexible Consent Management: Allows for tailored data collection based on user consent, ensuring compliance.
  • Analytics Integration: Works seamlessly with analytics tools for accurate data collection under consent boundaries.

Take in Consideration:

   – Complex Setup: May require technical expertise for effective implementation.

   – Reliance on User Consent: Data collection effectiveness is directly tied to user consent.

Consent Mode v2, an integral feature of Google Analytics 4, is designed to align tracking practices with user consent. This feature plays a crucial role in how Google Analytics, along with Ads and third-party tags, operate based on the user’s consent choices, particularly regarding cookies or app identifiers. It functions in tandem with your Consent Management Platform (CMP) or any custom method for obtaining visitor consent, such as a cookie consent banner.

It’s accessible for websites through Google’s global site tag (gtag.js) and Google Tag Manager (GTM), as well as for apps via the Firebase SDK. While Consent Mode v2 is not a Consent Management Platform (CMP) itself, it is instrumental in managing tracking activities according to the levels of consent obtained.

In situations where visitors opt out of consent, traditional cookie storage is bypassed. Instead, tags dispatch pings to Google. To compensate for the resulting gaps in data collection, Google employs conversion modeling for websites and behavioral modeling for apps. The latter utilizes machine learning to estimate the actions of users who refuse analytics cookies, drawing upon the behaviors of similar users who consent to them.

This nuanced approach by Consent Mode v2 underscores Google’s commitment to balancing user privacy with the need for insightful analytics, adapting deftly in an environment where consent is paramount.

GTM Server Side:


  • Privacy-Centric Data Processing: Enhances user privacy by handling data on the server side.
  • Performance Benefits: Can improve website loading times due to reduced client-side JavaScript.

Take in Consideration:

  • Technical Resources Needed: Demands server setup and maintenance.
  • Additional Costs: May incur costs for server hosting and management.

Strategic Implications for Digital Marketers

The combination of these tools presents a comprehensive framework for navigating the post-cookie era. Digital marketers, especially those well-versed in Google Analytics 4, Google Tag Manager, and Firebase, can leverage these solutions to continue delivering personalized marketing experiences within the new norms of data privacy and user consent.

As a Marketing Manager, it is vital to know these developments. Educating oneself on these evolving technologies ensures that marketing strategies remain effective, compliant, and aligned with current privacy standards.

Act Now

That’s why you should consider Data-driven Marketing to leverage your 1st party data, focus on inbound marketing not disregarding outbound marketing to reach your business goal in your marketing strategy.

Never forget to employ processes to have data with quality to plumb in your data-driven marketing strategy.

Act now and contact us for developing your roadmap!


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