Hello, I am working with a client who has three separate suppliers for their products. Two of them use shipnation and one will be manually fulfilling the orders they receive from us. My question is: How do I set this up in shopify to make sure that each supplier receives the order and then inventory is accurately calculated and fulfilled? I am a newb to shopify and am not sure what the process is. I'm assuming that I have to create a custom order fulfillment for each, but then what?
Any help would be GREATLY appreciated.