+387 %
MER Increase
How Stay Cold Apparel increased its share of new customers by 218% – while achieving an 84x ROI on Tracify costs.
Stay Cold Apparel is a high-growth D2C streetwear brand that faced a challenge familiar to many ambitious e-commerce companies: while the business was expanding, the data used to make performance marketing budget decisions was simply inaccurate. With Klar for BI & attribution, all the pieces seemed to be in place. In practice, however, the tool failed to provide a reliable foundation for profitable growth. Since integrating Tracify for tracking and AI attribution as a single source of truth for multichannel performance marketing, that has fundamentally changed—all within a single month.
+218 %
New customer share (profitable first purchase)
-83 %
Customer Acquisition Cost
We thought we were already performing very well in marketing at Stay Cold, and we were – despite optimizing based on incorrect attribution data. Within a month, Tracify showed us how we could achieve significantly more with a much stronger data foundation. It was an absolute game-changer and the start of a whole new dimension of profitable growth and unlocking our full potential.
Challenges
- Flawed decision-making basis: Klar failed to provide reliable attribution. Budgets were allocated based on skewed data, leading to inefficient campaigns and missed growth potential.
- Inefficiency in new customer offers: Without a clean data foundation, it was nearly impossible to manage new customer campaigns profitably—a critical disadvantage for an 8-figure D2C brand.
- No intraday scaling possible: Isolated, non-deduplicated event data and slow systems prevented rapid optimization cycles. Decisions that needed to be made today arrived too late or not at all.
Consequences
- Budget wasted on channels and campaigns evaluated based on incorrect attribution data – with a direct impact on profitability and growth
- The actual contribution of individual channels and touchpoints remained invisible – holistic customer journey optimization was simply not possible
- Growth potential remained untapped: without reliable real-time data, the foundation for fast, profitable scaling decisions was missing
- Top-of-funnel touchpoints like prospecting ads were chronically undervalued, while retargeting was incorrectly identified as the primary growth driver
Solution
Stay Cold Apparel integrated Tracify as their central tracking and attribution tool – with an onboarding process completed in just one day. Instead of a generic setup, Jonas and his team received customized onboarding tailored directly to their specific use case, guided by Tracify experts. The result: valid, deduplicated data across all channels from day one.
Result
Record-breaking new customer numbers
Within the first month of integrating Tracify, Stay Cold Apparel achieved the best new customer split on a single offer in the company's history – all while maintaining a profitable first purchase. The share of new customers increased by +218%, and new customer efficiency on a dedicated campaign also reached a new record high. Metrics that were previously difficult to manage suddenly became the strongest lever for growth.
Cross-channel optimization
The ability to perform cross-channel optimization quickly became particularly relevant: for the first time, Stay Cold Apparel was able to view the customer journey holistically and correlate channels and initiatives. A concrete example: by using Tracify links in the Instagram broadcasting channel, this channel was identified as an efficient mid-funnel support and was subsequently expanded in a targeted manner.
Dramatic efficiency gains
The MER increased by +387%, and customer acquisition costs dropped by 83%. The ROI on the Tracify investment was 84x. These figures demonstrate that clean attribution is not just a nice-to-have. It is the foundation for every further optimization step in performance marketing.
Why Tracify?
- Precise, deduplicated attribution across all channels – no more duplicate events, no more flawed decision-making.
- Intraday data and rapid optimization cycles – budget decisions can be made and implemented in real time.
- Holistic customer journey optimization – cross-channel relationships become visible, allowing you to scale channels up or down as needed.
- Straightforward onboarding and expert consulting – set up in one day, with personalized expert onboarding based on your own use case.
- Top-tier support – live support, performance calls, and academy.
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