Case Studies / vitaform GmbH & Co. KG

How vitaform GmbH & Co. KG Generated €17,304.55 with WhatsApp

€17K

Total revenue

85.7%

Open rate

28,7X

ROAS

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Written by Johannes Mansbart

CEO & Co-Founder, chatarmin.com

Last updated at: October 02, 2025

Clothing

Initial Situation

vitaform GmbH & Co. KG, a traditional German footwear and fashion company, regularly uses seasonal campaigns to engage its community.
For their popular Lambskin Week, vitaform wanted to test how WhatsApp would perform compared to email and social media – focusing on revenue, open rates, and ROI.

Solution: WhatsApp Campaigns with Chatarmin

With Chatarmin, vitaform launched a two-phase WhatsApp campaign:

  • Shopify integration enabled personalized product recommendations.
  • High reach thanks to WhatsApp’s outstanding open rates.
  • Cost efficiency through Chatarmin’s pricing model without any markup on Meta costs.

The campaign was rolled out in two message waves.

Results

vitaform WhatsApp Marketing case study

First Message:

  • €11,611.30 in revenue
  • €602.01 WhatsApp costs

Second Message:

  • €5,693.25 in revenue
  • €0.00 WhatsApp costs

Total:

  • €17,304.55 in revenue 💰
  • €602.01 WhatsApp costs
  • €219 AOV 📦
  • 85.7% open rate
  • 28.7X ROAS 🚀

Conclusion

vitaform’s Lambskin Week campaign proves that WhatsApp is a powerful revenue driver – even for seasonal promotions.
Thanks to hyper-personalized communication, near-perfect open rates, and minimal costs, vitaform was able to generate more than €17,000 in revenue within just a few days – achieving an impressive 28.7X ROAS.

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