What is an FBA Business? An FBA (Fulfillment by Amazon) business is an e-commerce model where sellers use Amazon’s logistics services to store, pack, and ship their products. With an FBA business, sellers send their inventory to Amazon’s fulfillment centers, and Amazon handles all aspects of order fulfillment, including shipping, customer service, and returns. This model allows sellers to scale their businesses without worrying about the complexities of inventory management or logistics, while still benefiting from Amazon’s trusted platform and customer base.