Integrate all sales channels and manage Your orders with Multiorders - multichannel shipping and inventory management software - a perfect workflow optimising solution. Connect all of Your shipping carriers and print labels with just one click, manage pricing and stock levels of all sales channels from the same place. Available USPS Commercial Plus Pricing. Integrate Amazon, Ebay, Etsy, Shopify, Woocommerce, Bigcommerce, SquareSpace and other sales channels. Best solution for online sellers.