Case Study: Sheridyn Swim achieves 850% ROAS and 85% higher conversions with Emarsys CRM Ads

Hyper-Targeted Smart Ads That Deliver CRM-Boosted Retention Reach and Conversions

Sheridyn Swim, an Australian online designer swimwear retailer, needed to unlock its CRM data to improve targeting, re-engage inactive customers, and lift lifetime value. Their social ads were underperforming because they relied on third‑party segmentation, couldn’t differentiate prospects from existing customers, and lacked the personalization needed to convert browsers and reactivate dormant buyers.

By adopting the Emarsys B2C Marketing Cloud and CRM Ads, Sheridyn Swim used identity‑based targeting, smart lookalike audiences, and automated retention programs to deliver highly personalized ads. The campaign delivered dramatic gains — acquisition ROAS +850%, retention ROAS +423% — and drove a +85% increase in overall conversions, +200% dormant client reactivation, and +11.5% higher new lead conversion, while strengthening brand reach and customer lifetime value.

Sheridyn Swim

Ilan Peretz

CEO