In previous Commerce versions, OrderStatus and OrderShipmentStatus were enums, so could not be extended. In Commerce 13, a breaking change converted OrderStatus and OrderShipmentStatus from enums to classes. As a result, you can no longer apply bitwise operations to instances of OrderStatus and OrderShipmentStatus.
Registering a new OrderStatus
OrderStatus.RegisterStatus(new OrderStatus(128, "WaitingForFeedback"));
To get all registered OrderStatuses, including built-in ones, use this code.
var statuses = OrderStatus.RegisteredStatuses;
Last updated: Mar 29, 2019