how does the fulfilment process work

how does the fulfilment process work on Amazon starts when a seller lists a product and a customer places an order. If using FBA, the product is already stored in Amazon’s warehouse and is picked, packed, and shipped by Amazon. FBM sellers fulfill the order themselves, handling storage and shipping directly. The process includes tracking updates, delivery confirmations, and returns. Efficient fulfillment directly impacts customer satisfaction, which in turn influences seller ratings and Buy Box eligibility.