# OrderCancellationUpdate
## Properties
**order_hash** | **String** | The unique hash of the order. |
**client_order_id** | Option<**String**> | The client-provided order ID. | [optional]
**symbol** | **String** | The symbol of the market. |
**account_address** | **String** | The address of the account. |
**created_at_millis** | **i64** | The timestamp of the order creation in milliseconds. |
**cancellation_reason** | [**models::OrderCancelReason**](OrderCancelReason.md) | |
**failure_to_cancel_reason** | Option<[**models::OrderCancellationFailureReason**](OrderCancellationFailureReason.md)> | | [optional]
**remaining_quantity_e9** | **String** | The remaining quantity of the order. |
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