44% Stronger ROAS and 80% Time Saved: How Winkelstraat.nl Scaled Smarter
Winkelstraat.nl is a leading online fashion platform that connects shoppers with exclusive pieces from high-end boutiques across Europe. Unlike traditional e-commerce players, the company does not hold stock itself, but works closely with its boutique partners to ensure a seamless customer experience. Their marketing efforts are managed together with IWB, the agency that supports Winkelstraat.nl in scaling campaigns across multiple digital channels.
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Fashion
Google Ads
Meta Ads
Bing Ads
Snapchat Ads
TikTok Ads
Pinterest Ads
Criteo
Custom
Results
+44% stronger blended ROAS with UMM
+12% YoY ROAS growth
-18% YoY CPA
-80% time spent managing bidding strategies
Challenges
Winkelstraat.nl was ready to take the next step in how they measured and managed marketing performance. Together with their agency partner IWB, they were looking for more clarity across an expanded mix of active channels. The aim was to move beyond assumptions and understand the real contribution of each platform to sales. Without advanced, independent attribution, high-potential channels like Snapchat and Pinterest did not receive the investment they might deserve. At the same time, manual bidding made it harder to adjust quickly and scale efficiently. Smarter use of data was the key to moving forward.
Approach
Winkelstraat.nl introduced Billy Grace at the end of 2023 to bring more clarity, efficiency, and control of their marketing operations. With the UMM model, they gained deeper insight into the true value of each channel, especially in the upper funnel. This empowered the team to confidently increase focus on underutilized platforms like TikTok and Snapchat.
By enabling Billy Grace’s Autopilot, Winkelstraat.nl automated bidding and budget allocation across all channels. This eliminated manual adjustments and ensured spend consistently followed performance. It not only saved time, but made every euro work harder. For agency partner IWB, this led to significant time-saving, freeing up time to manage multiple platforms simultaneously and focus more on strategic and creative efforts like content and campaign optimization.
Key takeaways
- Independent attribution gave Winkelstraat.nl and IWB the confidence to scale underused but high-potential channels like Snapchat and TikTok.
- Understanding true channel impact allowed for more accurate, margin-focused budget decisions.
- Automations did not just save time, it unlocked a more consistent and agile way to manage campaigns across all platforms.
- Data-driven decision-making replaced assumptions, creating a foundation for long-term marketing efficiency and performance.
