eBay Merchant Data APIVersion 1099

Applicable values for OrderReportResponse.OrderArray.Order.OrderStatus

Active
This value indicates that the cart is active. The 'Active' state is the only order state in which order line items can still be added, removed, or updated in the cart.
All
This value is passed into the OrderStatus of GetOrders to retrieve order in all states. This is the default value.
Authenticated
This value indicates that the cart was authenticated.
Cancelled
This value indicates that the cart was cancelled.
CancelPending
This value indicates that a buyer has initiated a cancellation request on the order. If a seller sees an order in this state, that seller must either approve or reject the cancellation request through My eBay Web flows or through the Post-Order API cancellation calls.

This CancelPending value can be used as a filter in the GetOrders call request to discover recent buyer-initiated cancellations.
Completed
This value indicates that the order is completed.
CustomCode
Reserved for internal or future use.
Default
This value indicates that the order is in default status.
Inactive
This value indicates that the cart is inactive.
InProcess
This value indicates that processing of the buyer's cart has been initiated, but is not yet complete.
Invalid
This value indicates that the cart is invalid, or no longer exists.