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# AWS::Bedrock::FlowVersion MetadataConfigurationForReranking
<a name="aws-properties-bedrock-flowversion-metadataconfigurationforreranking"></a>

Configuration for how metadata should be used during the reranking process in Knowledge Base vector searches. This determines which metadata fields are included or excluded when reordering search results.

## Syntax
<a name="aws-properties-bedrock-flowversion-metadataconfigurationforreranking-syntax"></a>

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

### JSON
<a name="aws-properties-bedrock-flowversion-metadataconfigurationforreranking-syntax.json"></a>

```
{
  "[SelectionMode](#cfn-bedrock-flowversion-metadataconfigurationforreranking-selectionmode)" : String,
  "[SelectiveModeConfiguration](#cfn-bedrock-flowversion-metadataconfigurationforreranking-selectivemodeconfiguration)" : RerankingMetadataSelectiveModeConfiguration
}
```

### YAML
<a name="aws-properties-bedrock-flowversion-metadataconfigurationforreranking-syntax.yaml"></a>

```
  [SelectionMode](#cfn-bedrock-flowversion-metadataconfigurationforreranking-selectionmode): String
  [SelectiveModeConfiguration](#cfn-bedrock-flowversion-metadataconfigurationforreranking-selectivemodeconfiguration): 
    RerankingMetadataSelectiveModeConfiguration
```

## Properties
<a name="aws-properties-bedrock-flowversion-metadataconfigurationforreranking-properties"></a>

`SelectionMode`  <a name="cfn-bedrock-flowversion-metadataconfigurationforreranking-selectionmode"></a>
The mode for selecting which metadata fields to include in the reranking process. Valid values are ALL (use all available metadata fields) or SELECTIVE (use only specified fields).  
*Required*: Yes  
*Type*: String  
*Allowed values*: `SELECTIVE | ALL`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SelectiveModeConfiguration`  <a name="cfn-bedrock-flowversion-metadataconfigurationforreranking-selectivemodeconfiguration"></a>
Configuration for selective mode, which allows you to explicitly include or exclude specific metadata fields during reranking. This is only used when selectionMode is set to SELECTIVE.  
*Required*: No  
*Type*: [RerankingMetadataSelectiveModeConfiguration](aws-properties-bedrock-flowversion-rerankingmetadataselectivemodeconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)