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# AWS::GameLift::GameServerGroup TargetTrackingConfiguration
<a name="aws-properties-gamelift-gameservergroup-targettrackingconfiguration"></a>

 **This data type is used with the Amazon GameLift FleetIQ and game server groups.** 

Settings for a target-based scaling policy as part of a `GameServerGroupAutoScalingPolicy`. These settings are used to create a target-based policy that tracks the GameLift FleetIQ metric `"PercentUtilizedGameServers"` and specifies a target value for the metric. As player usage changes, the policy triggers to adjust the game server group capacity so that the metric returns to the target value. 

## Syntax
<a name="aws-properties-gamelift-gameservergroup-targettrackingconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-gamelift-gameservergroup-targettrackingconfiguration-syntax.json"></a>

```
{
  "[TargetValue](#cfn-gamelift-gameservergroup-targettrackingconfiguration-targetvalue)" : Number
}
```

### YAML
<a name="aws-properties-gamelift-gameservergroup-targettrackingconfiguration-syntax.yaml"></a>

```
  [TargetValue](#cfn-gamelift-gameservergroup-targettrackingconfiguration-targetvalue): Number
```

## Properties
<a name="aws-properties-gamelift-gameservergroup-targettrackingconfiguration-properties"></a>

`TargetValue`  <a name="cfn-gamelift-gameservergroup-targettrackingconfiguration-targetvalue"></a>
Desired value to use with a game server group target-based scaling policy.   
*Required*: Yes  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)