This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::OpenSearchService::Domain Idp
<a name="aws-properties-opensearchservice-domain-idp"></a>

The SAML Identity Provider's information.

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

### JSON
<a name="aws-properties-opensearchservice-domain-idp-syntax.json"></a>

```
{
  "[EntityId](#cfn-opensearchservice-domain-idp-entityid)" : String,
  "[MetadataContent](#cfn-opensearchservice-domain-idp-metadatacontent)" : String
}
```

### YAML
<a name="aws-properties-opensearchservice-domain-idp-syntax.yaml"></a>

```
  [EntityId](#cfn-opensearchservice-domain-idp-entityid): String
  [MetadataContent](#cfn-opensearchservice-domain-idp-metadatacontent): String
```

## Properties
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`EntityId`  <a name="cfn-opensearchservice-domain-idp-entityid"></a>
The unique entity ID of the application in the SAML identity provider.  
*Required*: Yes  
*Type*: String  
*Minimum*: `8`  
*Maximum*: `512`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetadataContent`  <a name="cfn-opensearchservice-domain-idp-metadatacontent"></a>
The metadata of the SAML application, in XML format.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `1048576`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)