How Wellpack sent hundreds of campaigns and millions of RCS messages in under a year

“RCS lets us offer clients immersive, interactive campaigns that truly stand out. With Sinch, we’ve been able to scale fast and prove that creativity and performance go hand in hand.”

Flavien Charles Direction Générale & Partner of Wellpack

For more than 20 years, Wellpack has been helping brands across France reach new audiences through smart, data-driven mobile campaigns. Pulling from its database of 40 million consumers, the team designs and manages large-scale, localized campaigns for sectors like retail, insurance, and automotive.

But while SMS had long been their go-to channel and delivered strong results for Cost Per Visits (CPV) and ROI, it had limitations. Text-only messages, little interactivity, and modest click rates weren’t enough anymore. Advertisers were ready for something fresh. That’s where RCS came in.

RCS offered the perfect way to elevate their campaigns, with added visuals, buttons, and brand identity to create messages that feel more personal, engaging, and effective.

To bring this vision to life, Wellpack turned to Sinch, choosing RCS, SMS, and Rich SMS all managed through the Sinch Campaigns platform.

“We benchmarked several messaging platforms,” Flavien Charles said, “but we were looking for an innovative player capable of supporting SMS, Rich SMS, and RCS at scale — while helping our teams grow in expertise.”

More than a technology provider, Sinch became a hands-on partner.

“Sinch trained our internal teams, both on the technical and commercial sides,” Flavien said. “They also adapted their internal processes and features to align with Wellpack’s specific business model. It’s been real co-construction.”

With Sinch, Wellpack’s campaign experts can quickly launch new RCS Agents, build creative and interactive campaigns, and track performance — all from one platform. The result is smoother execution, faster scaling, and campaigns that truly connect with consumers.

In less than a year, Wellpack launched more than 60 RCS Agents, ran hundreds of campaigns, and sent millions of RCS messages. A/B testing confirmed the impact: RCS consistently outperformed SMS in engagement and conversion rates.

For a major food retail brand, Wellpack achieved a:

• 378% ROI increase

• 91% lift in store visits

• 54% lower cost per visit

“Sinch RCS enables us to offer far more engaging experiences and to address brands for whom creative, interactive communication perfectly aligns with their marketing goals and customers’ expectations,” Flavien said.

RCS also helped Wellpack reach new industries and audiences. Advertisers can now choose RCS, SMS, or Rich SMS depending on their goals — all managed through one trusted partner.

What started as a push for more engaging campaigns has turned into a strong, long-term partnership. With Sinch’s reliable messaging APIs and ongoing innovation, Wellpack continues to expand its use of RCS and grow its impact across industries.

“Sinch helps us offer innovative, high-performing campaigns that make a real difference,” said Flavien. “They’re a true growth partner.”