Event_Start Task_Validate Gateway_Stock Task_Cancel Event_Cancelled Task_Pack Task_Ship Event_Completed Flow_StartValidate Flow_StartValidateFlow_ValidateStock Flow_ValidateStock Flow_StockPackFlow_StockCancel Flow_StockCancelFlow_CancelEnd Flow_CancelEnd Flow_StockPackFlow_PackShip Flow_PackShipFlow_ShipEnd Flow_ShipEnd stockAvailable not stockAvailable