---
id: "M:cAlgo.API.Plugin.CancelPendingOrderAsync(cAlgo.API.PendingOrder,System.Action{cAlgo.API.TradeResult})"
kind: "method"
type: "T:cAlgo.API.Plugin"
url: "https://help.ctrader.com/ctrader-algo/references/General/Plugin/CancelPendingOrderAsync/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# Plugin.CancelPendingOrderAsync

Member of [Plugin](https://help.ctrader.com/ctrader-algo/references/General/Plugin/index.md).

## CancelPendingOrderAsync(PendingOrder pendingOrder, Action<TradeResult> callback)

Cancel a Pending Order in asynchronous execution mode

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Plugins cannot run in the CLI: ctrader-cli runs cBots only.
- Cloud: Plugins cannot run in the cloud: it runs cBots only.

C#:

```csharp
public TradeOperation CancelPendingOrderAsync(PendingOrder pendingOrder, Action<TradeResult> callback)
```

Python:

```python
api.CancelPendingOrderAsync(pendingOrder: PendingOrder, callback: Callable[[TradeResult], None]) -> TradeOperation
```

### Parameters

- `pendingOrder` (`PendingOrder`, Python `PendingOrder`): Pending Order to cancel
- `callback` (`Action<TradeResult>`, Python `Callable[[TradeResult], None]`): Method that is called when pending order is cancelled

### Returns

`TradeOperation` — Trade Operation

### Examples

C#:

```csharp
CancelPendingOrderAsync(PendingOrders[0], result => Print("Trade result: {0}", result.IsSuccessful));
```

Python:

```python
api.CancelPendingOrderAsync(api.PendingOrders[0], lambda result: api.Print(f"Trade result: {result.IsSuccessful}"))
```