Sometimes, a customer has already paid for an order but wants to add more products to it. BSDropshipping supports this scenario. Just follow the steps below.
Navigate to "Store Management" and click "Create an Offline Store."
Navigate to "Order" and click "Actions", then click "Add Order"
Input your customer's address an choose the procut they want to add.
Go to "Order" and Pay for the order you just created by clicking "Add to Invoice"