# PutAccountPreferences
<a name="API_PutAccountPreferences"></a>

Use this operation to set the account preference in the current Amazon Web Services Region to use long 17 character (63 bit) or short 8 character (32 bit) resource IDs for new EFS file system and mount target resources. All existing resource IDs are not affected by any changes you make. You can set the ID preference during the opt-in period as EFS transitions to long resource IDs. For more information, see [Managing Amazon EFS resource IDs](https://docs.amazonaws.cn/efs/latest/ug/manage-efs-resource-ids.html).

**Note**  
Starting in October, 2021, you will receive an error if you try to set the account preference to use the short 8 character format resource ID. Contact Amazon support if you receive an error and must use short IDs for file system and mount target resources.

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

```
PUT /2015-02-01/account-preferences HTTP/1.1
Content-type: application/json

{
   "ResourceIdType": "{{string}}"
}
```

## URI Request Parameters
<a name="API_PutAccountPreferences_RequestParameters"></a>

The request does not use any URI parameters.

## Request Body
<a name="API_PutAccountPreferences_RequestBody"></a>

The request accepts the following data in JSON format.

 ** [ResourceIdType](#API_PutAccountPreferences_RequestSyntax) **   <a name="efs-PutAccountPreferences-request-ResourceIdType"></a>
Specifies the EFS resource ID preference to set for the user's Amazon Web Services account, in the current Amazon Web Services Region, either `LONG_ID` (17 characters), or `SHORT_ID` (8 characters).  
Starting in October, 2021, you will receive an error when setting the account preference to `SHORT_ID`. Contact Amazon support if you receive an error and must use short IDs for file system and mount target resources.
Type: String  
Valid Values: `LONG_ID | SHORT_ID`   
Required: Yes

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

```
HTTP/1.1 200
Content-type: application/json

{
   "ResourceIdPreference": { 
      "ResourceIdType": "string",
      "Resources": [ "string" ]
   }
}
```

## Response Elements
<a name="API_PutAccountPreferences_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.

 ** [ResourceIdPreference](#API_PutAccountPreferences_ResponseSyntax) **   <a name="efs-PutAccountPreferences-response-ResourceIdPreference"></a>
Describes the resource type and its ID preference for the user's Amazon Web Services account, in the current Amazon Web Services Region.  
Type: [ResourceIdPreference](API_ResourceIdPreference.md) object

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

 ** BadRequest **   
Returned if the request is malformed or contains an error such as an invalid parameter value or a missing required parameter.    
 ** ErrorCode **   
The error code is a string that uniquely identifies an error condition. It is meant to be read and understood by programs that detect and handle errors by type.   
 ** Message **   
The error message contains a generic description of the error condition in English. It is intended for a human audience. Simple programs display the message directly to the end user if they encounter an error condition they don't know how or don't care to handle. Sophisticated programs with more exhaustive error handling and proper internationalization are more likely to ignore the error message.
HTTP Status Code: 400

 ** InternalServerError **   
Returned if an error occurred on the server side.    
 ** ErrorCode **   
The error code is a string that uniquely identifies an error condition. It is meant to be read and understood by programs that detect and handle errors by type.   
 ** Message **   
The error message contains a generic description of the error condition in English. It is intended for a human audience. Simple programs display the message directly to the end user if they encounter an error condition they don't know how or don't care to handle. Sophisticated programs with more exhaustive error handling and proper internationalization are more likely to ignore the error message.
HTTP Status Code: 500

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

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/elasticfilesystem-2015-02-01/PutAccountPreferences) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/elasticfilesystem-2015-02-01/PutAccountPreferences)