Multi-Country E-Commerce Ecosystem
The Challenge
A European retail group operating multiple brands needed to manage seven online stores — six in Romania and one in Bulgaria — each with its own product catalog, pricing, and customer base. But behind the scenes, all stores shared the same physical warehouse and inventory.
The fundamental problem was synchronization. When a product sold on Store A, the inventory needed to update instantly across all seven stores. When a shipment arrived at the warehouse, stock levels needed to reflect everywhere simultaneously. And when a customer in Bulgaria placed an order, the system needed to handle different languages, currencies, and shipping logistics seamlessly.
The group had tried managing this with spreadsheets and manual inventory counts. The result was overselling, stock discrepancies, fulfillment delays, and frustrated customers across all seven storefronts.
Our Approach
We designed a centralized backend ecosystem that acts as the single source of truth for all seven stores. Rather than treating each store as an independent operation, we built an architecture where the stores are front-end interfaces connected to a shared operational core.
The project was built in phases. Phase one established the centralized inventory and warehouse management system. Phase two connected all seven PrestaShop storefronts to the central system via real-time synchronization. Phase three added the custom warehouse management tools for pick, pack, and ship operations. Phase four delivered mobile applications for both customers and warehouse staff.
The Technical Solution
The centralized inventory engine maintains real-time stock levels across all seven stores. When a sale occurs on any storefront, inventory decrements propagate to all other stores within seconds. When new stock arrives at the warehouse, a single scan updates availability everywhere simultaneously.
The warehouse management module was built custom to match the group's specific fulfillment workflow. Staff use mobile devices to receive shipments, manage bin locations, pick orders, and track packages. The system optimizes pick routes based on order composition and warehouse layout.
Multi-language support handles Romanian, Bulgarian, and English across the storefronts. Product descriptions, checkout flows, customer communications, and support interfaces all adapt to the customer's language and regional requirements including currency and tax calculations.
The mobile applications serve two audiences. Customer-facing apps for iOS and Android provide the full shopping experience with push notifications for orders, promotions, and delivery updates. Internal apps for warehouse staff provide barcode scanning, inventory management, and fulfillment tracking on mobile devices.
The PrestaShop storefronts were extended with custom modules that connect to the central backend. Each store maintains its own branding, product selection, and pricing while drawing from the shared inventory pool. Promotions and discounts can be configured per-store or across the entire network.
Results
Seven online stores across two countries now operate as a unified ecosystem. Inventory synchronization happens in real time — overselling has been virtually eliminated. The centralized warehouse system processes orders from all stores through a single optimized fulfillment pipeline.
The multi-language, multi-country architecture proved scalable. Adding the Bulgarian store required minimal additional development because the infrastructure was designed for multi-market operation from the beginning.
The mobile applications extended the reach of both the customer experience and the warehouse operations, enabling the group to serve customers and manage inventory from anywhere.
Key Takeaways
Centralize the backend, decentralize the frontend. Seven stores sharing one inventory system is dramatically simpler to manage than seven independent systems trying to synchronize.
Design for multi-market from day one. Adding the Bulgarian store was straightforward because we built language, currency, and regional support into the architecture early — not as an afterthought.
Custom warehouse management beats generic solutions when your fulfillment process is specific. The pick, pack, and ship workflow was designed around how this team actually operates, eliminating the compromises that come with adapting to off-the-shelf WMS tools.
Real-time synchronization is non-negotiable for multi-store inventory. Even a five-minute delay between stores causes overselling at scale. We engineered sub-second propagation to eliminate this entirely.
Managing multiple stores or markets with disconnected inventory? Book a free strategy call and we'll explore how a centralized ecosystem could simplify your operations.