The fulfillment program by Amazon started only a few years ago and it has changed the way people sell goods on the internet. Amazon was already a major player in the e-commerce, with their Fulfillment by Amazon (FBA) program, they are now even bigger.
Anyone can utilize Amazon’s excellent shipping program through their fulfillment program. Whether you’re selling things on various marketplaces outside or Amazon, or directly through Amazon, the shipping is handled by the e-commerce giant when you sign up on the FBA.