What does backorder mean?
This could be due to your stock balance being set as an Oversellable stock on the product(s). These orders will end up in the Pending Unstocked section within Warehouse (WMS). To handle and deliver these orders you need to fill your stock with the missing product(s), once the new stock is delivered in the system you may handle the order as normal.
Pick list 101
Once an order has been placed and you need to take action on packing and sending your order you'll probably want to know where to find the picking list so your warehouse team knows which items should be collected for order. You'll find the picking list either by going to **Fulfill orders** or **Orders** section in the Warehouse (WMS) section in Merchant Center.
What do the different statuses for an order mean - active, locked and permanently locked
Different statuses explained