createOrder( )

Creates an order from a specified checkout.

For an order to be created from a checkout, the following requirements must be met:

• A checkout cannot have calculation errors. Pass the checkout ID to Get Checkout and review the calculationErrors field.
• A checkout must have at least 1 line item or custom line item.
• All of the line Items have an availability.status of "AVAILABLE" or "PARTIALLY_AVAILABLE".
• If there is a payment to be made, meaning that priceSummary.total is greater than 0, the billingInfo.address field are required.
• When a checkout has line items to be shipped, the shippingInfo.shippingDestination.address and shippingInfo.selectedCarrierServiceOption fields are required.
• When a checkout has line items for pickup, the shippingInfo.selectedCarrierServiceOption.logistics.pickupDetails field are required.