Cloud based Web Application to Integrate Amazon Vendor (EDI) and Linnworks (API)

We need to create integration between Amazon EDI interface and our Order Management System Linnworks API. Here is a brief description of what this integration should do: PO confirmation stage: Import Purchase Orders from Amazon vendor via EDI Based on current stock levels, and predetermined conditions for products (MOQ, pack qty etc) from Linnworks, accept or decline each product in the PO. Confirm accepted quantity back to Amazon Create accepted POs in Linnworks (this will update stock levels for future POs) Packaging and shipping stage: Group POs by destination and delivery window Print item labels (with EAN barcodes) for products in the POs After packaging is done, submit ASN information back to Amazon based on actually packed Qty. Receive back ASN number and print ASN number and Label. Marke as shipped POs in Linnworks. Additional requirements Create invoices for shipped POs Send inventory and cost feeds to Amazon (from Linnworks) Dropship integration Receive sales and inventory reports from Amazon. Multiuser Interface Communication Protocols Required By Amazon -AS2 Connection or SFTP Description of Linnworks API can be found here [login to view URL]