Case Study: OUIGO improves consent rates and data reliability with Didomi and Addingwell

OUIGO boosts opt-in rate by 20% with Didomi

Ouigo, a low-cost train travel brand of SNCF Voyageurs, faced the challenge of optimizing its data collection for marketing while operating within a strict regulatory landscape. Their previous consent management solution had a poor user experience and led to a loss of exploitable data. They partnered with Didomi to implement a new Consent Management Platform (CMP) to improve opt-in rates, ensure full CNIL and GDPR compliance, and enhance transparency.

The solution from Didomi included implementing its CMP and later integrating Addingwell for server-side tracking. This combination provided a clear, compliant banner and reliable data collection. The results were significant, with a 20% increase in opt-in rates, a 15% improvement in ROAS on acquisition campaigns, and an 8% improvement in Web Core Vitals, leading to a faster site and a better user experience.

Ouigo