“Decisions should be driven by data, but never detached from intuition”: 10 LESSONS FROM Tim Böker, CEO of Gartenhaus.com / YDEON Group
Discover 10 valuable e-commerce lessons from Tim Böker, CEO of Gartenhaus.com / YDEON Group, as he shares his insights on the future of online retail to mark the 10th anniversary of the E-commerce Berlin Expo. [EXCLUSIVE INTERVIEW SERIES]
The E-commerce Berlin Expo celebrated its 10th anniversary in 2026. To mark this milestone, we interviewed some of the world’s most influential leaders about the future of online retail, asking them to share their 10 valuable lessons in e-commerce. Their insights were featured in our special album, showcasing the most powerful voices in online retail, which we decided to share with you on E-commerce Germany News.
This time, we’re featuring an exclusive interview with Tim Böker, CEO of Gartenhaus.com / YDEON Group. See what e-commerce lessons he shared with us below!
EVERY CHALLENGE IS A CHANCE TO GROW
What first drew you to this industry?
TIM: When I entered e-commerce in 2010, it still felt like a largely unexplored field. Many areas were dominated by IT and logistics, leaving enormous room to introduce real user-experience thinking. The idea of bringing the customer’s perspective into a system built primarily for operational efficiency fascinated me. It offered the rare chance to shape an industry while it was still forming its identity. That mix of freedom, pragmatism, and the ability to make a visible impact is what drew me in and what still motivates me today.
Which early failure taught you something that still guides you today?
TIM: An early failure goes back to the founding of my first company in 2010. I had strong ideas and plenty of drive, but I underestimated how much structure, teamwork, and financial discipline are needed to turn a vision into a stable business. I also tried to solve too much on my own instead of seeking experienced guidance and allowing others to challenge my ideas. When I later founded the UX agency Kommerz, I took a different approach and installed an advisory board from day one. This decision broadened perspectives and helped avoid blind spots. This shaped my mindset: build solid foundations, work with strong sparring partners, and treat every challenge as a chance to grow. It’s a principle that still guides me today.
When you think of the past decade of e-commerce, what do you miss – and what are you glad we left behind?
TIM: I’m glad the industry has moved beyond the belief that revenue alone matters more than profitability. That mindset held many companies back. What I do miss, however, is the pioneering spirit that shaped the early years. I wish there were more sense of building something entirely new and pushing the boundaries of what commerce could become. Today, e-commerce sometimes feels overly focused on optimization rather than reinvention. A bit of that early boldness would do us good as we shape the next chapter.
(…) decisions should be driven by data, but never detached from intuition. Data sharpens decisions; intuition gives them direction. The balance between both is non-negotiable for me.
What is the single most important business lesson you have learned throughout your career?
TIM: Going the extra mile always pays off. Consistently delivering a bit more in preparation, quality, or customer understanding creates trust and momentum that compound over time. It opens doors, strengthens relationships, and differentiates you in moments that matter. It’s a simple principle, but one of the most powerful in business.
How would you define success in e-commerce today, and how has your view of it changed over time?
TIM: Success used to be defined primarily by growth and assortment size, the old department-store logic. That has changed completely. Today, success means building a model that genuinely delights customers while operating profitably and sustainably. It’s about holding both sides of the business in balance: value for customers and value for the company. That equilibrium is the true measure of success in modern e-commerce.
What do you see as the biggest opportunity in e-commerce today?
TIM: The greatest opportunity lies in verticalization and expanding the value chain. More retailers are becoming brands themselves, shaping products and customer experiences end-to-end. These models offer stronger differentiation, healthier margins, and deeper customer loyalty. Owning more of the journey creates resilience and strategic freedom: Advantages that will define the next generation of leaders.
What’s the most counterintuitive or unconventional thing your company does today that actually works?
TIM: Alongside our e-commerce operations, we built a mobile field-sales team that meets customers directly at their homes. In a digital-first world, that approach appears unconventional, almost counterintuitive. Yet it creates a level of trust, insight, and immediacy that online channels alone cannot offer. The combination of digital scale with personal interaction has become one of our strongest assets.
THE IMPORTANCE OF DATA
What guiding principle do you personally refuse to compromise on, no matter the trend or pressure?
TIM: Every business model needs a clear proof of concept before it is scaled. Growth without validation is fragile. At the same time, decisions should be driven by data, but never detached from intuition. Data sharpens decisions; intuition gives them direction. The balance between both is non-negotiable for me.
Stay curious, stay close to your audience, and avoid building in isolation. If your decisions are grounded in real customer insight, you will build something that lasts.
Looking ahead, what will define the next decade of e-commerce, and how does thinking about the future make you feel – optimistic, excited, concerned, or something else?
TIM: I remain optimistic. E-commerce will continue to evolve, but the companies that succeed will be those willing to embrace change rather than defend the status quo. Technology and IT will increasingly become commodities; they will no longer be the differentiator. What will matter is a relentless focus on the customer as an operational principle. That shift makes the future both exciting and full of opportunity.
If you could leave a message for future e-commerce leaders, what would it be?
TIM: Always ask yourselves what your customer truly wants. It is the simplest question and the one that prevents companies from losing their way. Stay curious, stay close to your audience, and avoid building in isolation. If your decisions are grounded in real customer insight, you will build something that lasts.
Tim Böker’s bio
Tim Böker is the CEO of Gartenhaus.com, the leading e-commerce specialist for premium garden houses and outdoor DIY projects. He also serves as Chief Growth Officer of the YDEON Group, where he drives the strategic growth and international expansion of digital consumer brands. Previously, he was Director Retail at ROSE Bikes following the acquisition of KOMMERZ, the award-winning digital agency he founded.
