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# AWS::Lambda::CapacityProvider TargetTrackingScalingPolicy
<a name="aws-properties-lambda-capacityprovider-targettrackingscalingpolicy"></a>

A scaling policy for the capacity provider that automatically adjusts capacity to maintain a target value for a specific metric.

## Syntax
<a name="aws-properties-lambda-capacityprovider-targettrackingscalingpolicy-syntax"></a>

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

### JSON
<a name="aws-properties-lambda-capacityprovider-targettrackingscalingpolicy-syntax.json"></a>

```
{
  "[PredefinedMetricType](#cfn-lambda-capacityprovider-targettrackingscalingpolicy-predefinedmetrictype)" : String,
  "[TargetValue](#cfn-lambda-capacityprovider-targettrackingscalingpolicy-targetvalue)" : Number
}
```

### YAML
<a name="aws-properties-lambda-capacityprovider-targettrackingscalingpolicy-syntax.yaml"></a>

```
  [PredefinedMetricType](#cfn-lambda-capacityprovider-targettrackingscalingpolicy-predefinedmetrictype): String
  [TargetValue](#cfn-lambda-capacityprovider-targettrackingscalingpolicy-targetvalue): Number
```

## Properties
<a name="aws-properties-lambda-capacityprovider-targettrackingscalingpolicy-properties"></a>

`PredefinedMetricType`  <a name="cfn-lambda-capacityprovider-targettrackingscalingpolicy-predefinedmetrictype"></a>
The predefined metric type to track for scaling decisions.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `LambdaCapacityProviderAverageCPUUtilization`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TargetValue`  <a name="cfn-lambda-capacityprovider-targettrackingscalingpolicy-targetvalue"></a>
The target value for the metric that the scaling policy attempts to maintain through scaling actions.  
*Required*: Yes  
*Type*: Number  
*Minimum*: `0`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)