Comparing ERP Systems: Here Are the Options Available in 2026.

An inventory management system centralizes inventory, orders, and documents across multiple sales channels. It serves as the interface between the online store platform, accounting, and fulfillment service providers.
Among the best-known solutions in German-speaking countries are JTL, Billbee, Plentymarkets, and Xentral. Each solution has its own strengths—ranging from extensive customization options to exceptionally user-friendly operation for smaller teams.
It is important to have a stable, native interface with your fulfillment partner so that inventory and orders are synchronized without delay. Integration with marketplaces such as Amazon or eBay should also work seamlessly, as described in the article “Multichannel Fulfillment.”
The right inventory management system is the foundation for scalable, error-free fulfillment across multiple channels—the choice should be based on growth plans and existing systems.