What is Amazon FBA? How to Sell on Amazon?

A seller can start doing business in two different ways. Either via FBM (fulfillment by merchant) or FBA (fulfillment by Amazon). IN FBM, a seller can list the item and start the business. Once he receives the order, he will need to fulfill it through a third-party shipping company. While in FBA, the seller forwards the inventory to Amazon, when he receives the order, the Amazon team fulfills it.