The trade id.
OK
['Unknown' = 1, 'Open' = 2, 'Pending' = 3, 'Completed' = 4, 'Expired' = 5, 'Declined' = 6, 'RejectedDueToError' = 7, 'Countered' = 8, 'Processing' = 9, 'InterventionRequired' = 10, 'TwoStepVerificationRequired' = 11]