# CreateInstance
<a name="API_CreateInstance"></a>

Creates an instance of IAM Identity Center for a standalone AWS account that is not managed by AWS Organizations or a member AWS account in an organization. You can create only one instance per account and across all AWS Regions.

The CreateInstance request is rejected if the following apply: 
+ The instance is created within the organization management account.
+ An instance already exists in the same account.

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

```
{
   "ClientToken": "string",
   "Name": "string",
   "Tags": [ 
      { 
         "Key": "string",
         "Value": "string"
      }
   ]
}
```

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

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [ClientToken](#API_CreateInstance_RequestSyntax) **   <a name="singlesignon-CreateInstance-request-ClientToken"></a>
Specifies a unique, case-sensitive ID that you provide to ensure the idempotency of the request. This lets you safely retry the request without accidentally performing the same operation a second time. Passing the same value to a later call to an operation requires that you also pass the same value for all other parameters. We recommend that you use a [UUID type of value](https://wikipedia.org/wiki/Universally_unique_identifier).  
If you don't provide this value, then AWS generates a random one for you.  
If you retry the operation with the same `ClientToken`, but with different parameters, the retry fails with an `IdempotentParameterMismatch` error.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Pattern: `[!-~]+`   
Required: No

 ** [Name](#API_CreateInstance_RequestSyntax) **   <a name="singlesignon-CreateInstance-request-Name"></a>
The name of the instance of IAM Identity Center.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 255.  
Pattern: `[\w+=,.@-]+`   
Required: No

 ** [Tags](#API_CreateInstance_RequestSyntax) **   <a name="singlesignon-CreateInstance-request-Tags"></a>
Specifies tags to be attached to the instance of IAM Identity Center.  
Type: Array of [Tag](API_Tag.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 75 items.  
Required: No

## Response Syntax
<a name="API_CreateInstance_ResponseSyntax"></a>

```
{
   "InstanceArn": "string"
}
```

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

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

The following data is returned in JSON format by the service.

 ** [InstanceArn](#API_CreateInstance_ResponseSyntax) **   <a name="singlesignon-CreateInstance-response-InstanceArn"></a>
The ARN of the instance of IAM Identity Center under which the operation will run.   
For more information about ARNs, see [Amazon Resource Names (ARNs) and AWS Service Namespaces](/general/latest/gr/aws-arns-and-namespaces.html) in the * AWS General Reference*.  
Type: String  
Length Constraints: Minimum length of 10. Maximum length of 1224.  
Pattern: `arn:aws(-[a-z]{1,5}){0,3}:sso:::instance/(sso)?ins-[a-zA-Z0-9-.]{16}` 

## Errors
<a name="API_CreateInstance_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.    
 ** Reason **   
The reason for the access denied exception.
HTTP Status Code: 400

 ** ConflictException **   
Occurs when a conflict with a previous successful write is detected. This generally occurs when the previous write did not have time to propagate to the host serving the current request. A retry (with appropriate backoff logic) is the recommended response to this exception.  
HTTP Status Code: 400

 ** InternalServerException **   
The request processing has failed because of an unknown error, exception, or failure with an internal server.  
HTTP Status Code: 500

 ** ServiceQuotaExceededException **   
Indicates that the principal has crossed the permitted number of resources that can be created.  
HTTP Status Code: 400

 ** ThrottlingException **   
Indicates that the principal has crossed the throttling limits of the API operations.    
 ** Reason **   
The reason for the throttling exception.
HTTP Status Code: 400

 ** ValidationException **   
The request failed because it contains a syntax error.    
 ** Reason **   
The reason for the validation exception.
HTTP Status Code: 400

## See Also
<a name="API_CreateInstance_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/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/sso-admin-2020-07-20/CreateInstance) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sso-admin-2020-07-20/CreateInstance)