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Switching to a server-side setup with Asight and Addingwell has been a game changer for Même Pas Cap!. We’ve significantly reduced data loss, improved attribution on Meta and Google Ads, and gained a much clearer view of our funnel performance. Today, we spend less time debugging tracking issues and more time optimising our creative, our messaging and our customer journey, which directly translates into better ROAS and more efficient growth.
Challenge
Même Pas Cap! is a fast-growing French brand specialising in 100% online career assessment programs, helping professionals take control of their career paths.
As the company accelerated its paid acquisition efforts on Meta and Google Ads, it faced several critical challenges:
- Significant data loss caused by client-side tracking limitations (ad blockers, ITP, cookie consent)
- Incomplete conversion attribution, limiting a clear understanding of true media performance
- Difficulty managing budgets and accurately measuring campaign ROI
- The need to ensure strict GDPR compliance while fully leveraging first-party data
To continue scaling efficiently, Même Pas Cap! needed to secure its measurement framework, enrich its marketing signals, and build a long-term, reliable tracking infrastructure.
Solution
To address these challenges, our partner Asight supported Même Pas Cap! in a complete overhaul of its tracking setup, leveraging the server-side infrastructure provided by Addingwell. This approach made it possible to build a custom architecture, designed to deliver performance, compliance, and long-term scalability.
Tracking Audit & Redesign
A full review of the existing tracking plan, with a redefinition of key funnel events (leads, consultation bookings, conversions).
Server-Side Tracking Implementation
Deployment of a server-side Google Tag Manager managed by Addingwell, with no DevOps constraints, to centralise and secure data collection.
First-Party Signal Enrichment
Integration of SHA256-hashed first-party data (emails and phone numbers), enabling:
- Improved user recognition
- Higher match rates on advertising platforms
- Full compliance with GDPR requirements
Activation & Monitoring
Direct connections to marketing platforms via:
- Meta Conversion API
- Google Ads Enhanced Conversions
Continuous monitoring through Addingwell’s Tag Health and Data Monitoring tools, ensuring long-term data reliability.
Results
The implementation of this server-side architecture delivered fast, measurable results:
Optimised and Sustainable Media Performance
By enriching signals with hashed first-party data (email and phone), match rates across advertising platforms increased significantly. This resulted in improved ROAS, more reliable performance reporting, and a substantial reduction in blind spots when analysing campaign effectiveness.
Reinforced Data Governance
Beyond immediate performance gains, Même Pas Cap! now relies on a compliant, secure and future-proof infrastructure, ensuring long-term data reliability and regulatory compliance.
Conclusion
Thanks to the collaboration between Asight and Addingwell, Même Pas Cap! now benefits from a reliable, compliant, and performance-driven server-side tracking framework.
This new architecture enables the brand to regain full visibility across its entire funnel, fully unlock the value of its first-party data, and rely on solid data to guide marketing decisions. By turning measurement and tracking into a robust, long-lasting system, Même Pas Cap! has transformed tracking into a true driver of performance and growth.
Collaborating with Même Pas Cap! alongside Addingwell perfectly illustrates how the right tracking architecture can transform performance. By rebuilding a custom server-side setup and enriching it with first-party data, we unlocked far more reliable attribution and dramatically improved match rates. As a growth marketing agency, we immediately felt the impact in daily campaign management: clearer insights, stronger signals, and far more confident decision-making. Thanks to this migration, Même Pas Cap! now benefits from cleaner data and a solid foundation to scale efficiently.
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