Fast-Track Launch of the 5.10.15. Online Store – Speed and Quality Combined
When the 5.10.15. brand — supporting families with stylish and comfortable children’s clothing for nearly 30 years — approached Media4U in June 2024, it was clear from the start that this would not be a typical e-commerce project.
Time was tight and the expectations were high. The brief was simple in theory but complex in execution: launch a new online store at record speed without compromising the high quality that 5.10.15. has always delivered to its customers.
Background
The decision to build a new online store for 5.10.15. was driven by key business developments at Monnari — a long-standing Media4U client — including a new partnership with the previous operator of 51015kids.eu. Media4U’s extensive experience in implementing advanced e-commerce platforms for fashion brands proved invaluable. As a trusted technology partner for Monnari, the team already had a deep understanding of their expectations and saw an opportunity to deliver real value fast.
Our Approach
The foundation for the new store was the emonnari.pl platform, which had already proven itself to be scalable and reliable over the years. Leveraging this existing solution enabled us to quickly tailor features to meet the specific needs of the 5.10.15. brand, significantly reducing both design and implementation time. A deep understanding of the client’s needs was key to the success of this project. The team adjusted every element — from ERP system integrations and marketplace connections to marketing automation tools — to fit the unique characteristics of children’s fashion retail. The goal was clear: ensure smooth operations and an effortless shopping experience for customers.
What We Did
Development began immediately after the concept was approved and was completed by late July/early August 2024. Despite the tight timeline, Media4U delivered at pace without sacrificing quality — thanks to years of experience with similar projects. One of the critical steps was aligning the store’s go-live date with the client’s internal business processes. This coordination ensured a smooth transition into online sales, with no disruption. In September 2024, the new 51015kids.pl store officially launched. Going live in such a short timeframe was a technological achievement — and a strategic win for the brand.
Key Features
The new 5.10.15. online store was designed with mobile users in mind. Its responsive design adapts seamlessly to different screen sizes — a vital feature in a world where most shopping happens on smartphones.
The intuitive navigation and smart categorization by age and gender help customers quickly find the right products. Dedicated sections for “New Arrivals” and “Sale” make it easy to browse the current offer.
Integrated with the Przelewy24 payment system, the store offers customers a secure and convenient checkout experience.
Since the launch, the number of orders has continued to grow. The store is built to handle increased traffic during key shopping periods like Black Friday or the holiday season. Tests and performance monitoring confirm its stability and readiness — no matter the season.
Results
The 5.10.15. project proved that speed doesn’t have to come at the cost of quality. Media4U delivered a robust, high-performance solution within a tight timeframe. As a result, the brand not only maintained its strong market position but also created a solid foundation for future e-commerce growth.
