EDI integration with Amazon Vendor Central
Amazon, the largest online marketplace in the world is offering distributors and manufacturers to sell their products online, so when a manufacturers and distributors decide to sell on Amazon, they will use Amazon Vendor Central (instead of Amazon Seller Central).
Distributors and manufacturers who are selling via Amazon Vendor Central are called first-party seller. Basically they are being looked at as a supplier that is selling in bulks to Amazon.
In addition, in joining the Amazon Vendor Central network is via invitation only. Once you join the Amazon Vendor central network, you can use their web portal to download orders and create other documents such as invoices and shipments, however, if you have a large number of orders and want to automate your online activity with Amazon Vendor Central, you have to implement EDI.