Walmart Cancel order lines

POST /v3/orders/{purchaseOrderId}/cancel This request cancels one or more order lines before an order has been fulfilled. A `purchaseOrderId` must be included to cancel an order line. Update the inventory after canceling an order. The response to a successful call contains the order with the canceled line item. Supported cancellation reasons include: * SUPPLIER_CANCEL_CUSTOMER_REQUEST * SUPPLIER_CANCEL_BACKORDER * SUPPLIER...