how to become an amazon fba seller? Becoming an Amazon FBA (Fulfilled by Amazon) seller is a great way to streamline your e-commerce business. With FBA, Amazon handles your inventory storage, order fulfillment, shipping, and customer service, allowing you to focus on sourcing products and growing your brand. To become an FBA seller, you need to create an Amazon seller account, sign up for FBA, and start sending your inventory to Amazon’s fulfillment centers. Once your products are stored in Amazon’s warehouses, they’ll be eligible for Prime shipping and will appear on the marketplace as eligible for FBA.