order fulfilment service (UK spelling) operates similarly to its U.S. counterparts, with a focus on managing product logistics for e-commerce sellers. UK-based businesses often rely on these services to expand their reach across Europe and beyond. Fulfillment centers handle the backend process—inventory storage, order picking, packaging, and shipping—allowing sellers to concentrate on marketing and product development. For Amazon sellers, using fulfillment services is essential for maintaining Prime eligibility and fast delivery times.