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# CancelACIAction

Cancel an ACI action.

You specify the action to cancel using a thread value, which you can find using the `ACIThreadStatus` action. The server then stops the action as soon as possible, if it can be canceled.

You can use `CancelACIAction` to cancel the following actions when they are run synchronously:

- Process
- BuildAllFaces
- BuildAllObjects
- BuildAllVehicleModels
- BuildFace
- BuildObject
- BuildVehicleModel
- TrainFace
- TrainObject
- TrainVehicleModel

NOTE:

This is a service control action that can be sent only from ServiceControlClients (which are set in the `[Service]` section of the configuration file).

## Example

    http://12.3.4.56:9002/action=CancelACIAction&Thread=4

This action uses port 9002 to stop the action that is being processed on thread 4.

## Parameters

Parameter | Description | Required
--- | --- | ---
Thread | The thread of the action to cancel. | Yes

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