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# AWS::DataZone::Connection OAuth2ClientApplication
<a name="aws-properties-datazone-connection-oauth2clientapplication"></a>

The OAuth2Client application.

## Syntax
<a name="aws-properties-datazone-connection-oauth2clientapplication-syntax"></a>

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

### JSON
<a name="aws-properties-datazone-connection-oauth2clientapplication-syntax.json"></a>

```
{
  "[AWSManagedClientApplicationReference](#cfn-datazone-connection-oauth2clientapplication-awsmanagedclientapplicationreference)" : String,
  "[UserManagedClientApplicationClientId](#cfn-datazone-connection-oauth2clientapplication-usermanagedclientapplicationclientid)" : String
}
```

### YAML
<a name="aws-properties-datazone-connection-oauth2clientapplication-syntax.yaml"></a>

```
  [AWSManagedClientApplicationReference](#cfn-datazone-connection-oauth2clientapplication-awsmanagedclientapplicationreference): String
  [UserManagedClientApplicationClientId](#cfn-datazone-connection-oauth2clientapplication-usermanagedclientapplicationclientid): String
```

## Properties
<a name="aws-properties-datazone-connection-oauth2clientapplication-properties"></a>

`AWSManagedClientApplicationReference`  <a name="cfn-datazone-connection-oauth2clientapplication-awsmanagedclientapplicationreference"></a>
The AWS managed client application reference in the OAuth2Client application.  
*Required*: No  
*Type*: String  
*Pattern*: `^\S+$`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`UserManagedClientApplicationClientId`  <a name="cfn-datazone-connection-oauth2clientapplication-usermanagedclientapplicationclientid"></a>
The user managed client application client ID in the OAuth2Client application.  
*Required*: No  
*Type*: String  
*Pattern*: `^\S+$`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)