# AddRegion
<a name="API_AddRegion"></a>

Adds two domain controllers in the specified Region for the specified directory.

## Request Syntax
<a name="API_AddRegion_RequestSyntax"></a>

```
{
   "DirectoryId": "string",
   "RegionName": "string",
   "VPCSettings": { 
      "SubnetIds": [ "string" ],
      "VpcId": "string"
   }
}
```

## Request Parameters
<a name="API_AddRegion_RequestParameters"></a>

The request accepts the following data in JSON format.

 ** [DirectoryId](#API_AddRegion_RequestSyntax) **   <a name="DirectoryService-AddRegion-request-DirectoryId"></a>
The identifier of the directory to which you want to add Region replication.  
Type: String  
Pattern: `^d-[0-9a-f]{10}$`   
Required: Yes

 ** [RegionName](#API_AddRegion_RequestSyntax) **   <a name="DirectoryService-AddRegion-request-RegionName"></a>
The name of the Region where you want to add domain controllers for replication. For example, `us-east-1`.  
Type: String  
Length Constraints: Minimum length of 8. Maximum length of 32.  
Required: Yes

 ** [VPCSettings](#API_AddRegion_RequestSyntax) **   <a name="DirectoryService-AddRegion-request-VPCSettings"></a>
Contains VPC information for the [CreateDirectory](API_CreateDirectory.md), [CreateMicrosoftAD](API_CreateMicrosoftAD.md), or [CreateHybridAD](API_CreateHybridAD.md) operation.  
Type: [DirectoryVpcSettings](API_DirectoryVpcSettings.md) object  
Required: Yes

## Response Elements
<a name="API_AddRegion_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

## Errors
<a name="API_AddRegion_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
You do not have sufficient access to perform this action.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** ClientException **   
A client exception has occurred.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** DirectoryAlreadyInRegionException **   
The Region you specified is the same Region where the AWS Managed Microsoft AD directory was created. Specify a different Region and try again.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** DirectoryDoesNotExistException **   
The specified directory does not exist in the system.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** DirectoryUnavailableException **   
The specified directory is unavailable.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** EntityDoesNotExistException **   
The specified entity could not be found.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** InvalidParameterException **   
One or more parameters are not valid.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** RegionLimitExceededException **   
You have reached the limit for maximum number of simultaneous Region replications per directory.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

 ** ServiceException **   
An exception has occurred in AWS Directory Service.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 500

 ** UnsupportedOperationException **   
The operation is not supported.    
 ** Message **   
The descriptive message for the exception.  
 ** RequestId **   
The AWS request identifier.
HTTP Status Code: 400

## See Also
<a name="API_AddRegion_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/ds-2015-04-16/AddRegion) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ds-2015-04-16/AddRegion) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ds-2015-04-16/AddRegion) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ds-2015-04-16/AddRegion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ds-2015-04-16/AddRegion) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ds-2015-04-16/AddRegion) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ds-2015-04-16/AddRegion) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ds-2015-04-16/AddRegion) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ds-2015-04-16/AddRegion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ds-2015-04-16/AddRegion)