POM Amsterdam

WhatsApp Marketing CRM – Case Study POM Amsterdam

POM Amsterdam is a vibrant and positive fashion brand for women, active throughout Europe. Since 2020, Seventury has managed their digital marketing: from brand awareness campaigns to performance media buying on Google and Social.

Challenge

In 2025, Whatsapp Marketing was added to the digital marketing mix. Like many brands, POM experienced declining email open rates, lower engagement, and underwhelming SMS marketing results. They needed a more modern and effective CRM channel.

What did we do?

Seventury introduced WhatsApp marketing via Hello Charles. By integrating this tool with Klaviyo and Shopify, we created automated flows for welcome messaging and data enrichment. Through social lead campaigns, we collected phone numbers to scale and personalize CRM efforts.


  • Launched WhatsApp marketing with Hello Charles
  • Integrated Hello Charles with Shopify & Klaviyo
  • Built automated flows (welcome & enrichment)
  • Executed CRM and lead campaigns via social media

“Thanks to WhatsApp marketing, we’re seeing higher engagement levels than ever. The conversion rates are exceptional, and the performance is once again scalable.”

Result

  • 2x higher open rate vs. email
  • 9x higher click-through rate
  • 6x higher conversion rate from clicks (40x from delivered)

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