Initial Situation
For Black Week, Hunderunde wanted to launch a promotion that would reach their most loyal customers directly, without getting lost in crowded email inboxes.
The goal: fast revenue, high visibility, and measurable performance.
WhatsApp was the perfect channel — and with chatarmin.com, the VIP campaign could be precisely segmented, automated, and tracked.
Campaign Results
The numbers speak for themselves — and they are fully measurable:
- €42,073.03 in WhatsApp revenue
- 19.3x Return on WhatsApp Spend
- 76.1% open rate
- €2.14 revenue per recipient
This performance clearly shows what happens when smart segmentation meets a clear message on a channel that actually gets read.
Why the Campaign Worked So Well
1. WhatsApp as a High-Intent Channel
A 76.1% open rate is no coincidence — WhatsApp is personal, fast, and impossible to ignore.
2. Perfect Timing During Black Week
At a moment when customers are ready to buy, relevance + speed = conversions. WhatsApp delivers both.
3. A Clear, Value-Driven Message
No long texts, no fluff. Just a direct, attractive offer — plus a reminder.
4. A Powerful Tech Stack via chatarmin
Hunderunde was able to:
- segment precisely
- use high-performing templates
- track everything end-to-end
- monitor costs & revenue in real time
The result: efficiency + measurable ROI.
The Role of chatarmin: Technology That Works Invisibly
The best marketing technology is the kind that stays out of the way — and that’s exactly what chatarmin did for Hunderunde.
chatarmin enabled Hunderunde to achieve:
✅ Fast implementation – campaign ready in no time
✅ Intuitive handling – no overly complex workflows
✅ Legally compliant opt-ins – fully GDPR-compliant
✅ Real-time analytics – revenue, clicks & engagement at a glance
✅ Scalability – whether 500 or 50,000 recipients
The result: Hunderunde could focus entirely on the message — not the mechanics. A clear, high-performing campaign that reached the right people at the right moment.
What Other E-Commerce Brands Can Learn from This Case
WhatsApp isn’t a trend — it’s infrastructure
With over 90% market penetration in the DACH region, WhatsApp is the channel where customers expect to communicate with brands.
Permission beats reach
Better to have 5,000 recipients who opted in intentionally than 100,000 cold email contacts. Quality outperforms quantity — and Hunderunde proves it.
ROI speaks louder than theory
A 19.3x return shows what’s possible when relevance, timing, and a high-performing platform come together.
The right partner makes the difference
Setting up WhatsApp marketing correctly can be complex.
With chatarmin, it becomes a competitive advantage that turns directly into revenue.
Conclusion
Hunderunde demonstrates how brands can unlock significant revenue with a single, well-executed WhatsApp campaign.
A massive thank-you to Fabio Lehnert for the trust and flawless execution. 🚀