- TIBCO BusinessEvents®
- Standard
- Instance

# Instance.startStateMachine()

## Signature

`void startStateMachine(Concept instance, boolean startChildren)`

## Domain

ACTION, BUI

## Description

Start a Concept instance's main state machine, and optionally, the main state machines of its contained concepts.

## Parameters

Name | Type | Description
--- | --- | ---
`instance` | `Concept` | A Concept instance
`startChildren` | `boolean` | If true, start state machines for all concepts contained by `instance`

## Returns

Type | Description
--- | ---
`void` |

## Cautions

none