what does fba mean in amazon stands for Fulfillment by Amazon, which is a service that allows sellers to store their products in Amazon’s fulfillment centers. When an order is placed, Amazon handles the picking, packing, shipping, and customer service. FBA is a popular option for sellers who want to take advantage of Amazon’s robust logistics network and offer fast, reliable shipping, especially to Amazon Prime customers. By using FBA, sellers can focus on product sourcing and marketing, while Amazon handles the logistics.