# UpdateThesaurus
<a name="API_UpdateThesaurus"></a>

**Note**  
Amazon Kendra will no longer be open to new customers starting on July 30, 2026. If you would like to use the service, please sign up prior to July 30. For capabilities similar to Amazon Kendra, explore Amazon Bedrock Knowledge Bases. [Learn more](https://docs.aws.amazon.com/kendra/latest/dg/kendra-availability-change.html).

Updates a thesaurus for an index.

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

```
{
   "Description": "{{string}}",
   "Id": "{{string}}",
   "IndexId": "{{string}}",
   "Name": "{{string}}",
   "RoleArn": "{{string}}",
   "SourceS3Path": { 
      "Bucket": "{{string}}",
      "Key": "{{string}}"
   }
}
```

## Request Parameters
<a name="API_UpdateThesaurus_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.

 ** [Description](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-Description"></a>
A new description for the thesaurus.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1000.  
Pattern: `^\P{C}*$`   
Required: No

 ** [Id](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-Id"></a>
The identifier of the thesaurus you want to update.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9_-]*`   
Required: Yes

 ** [IndexId](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-IndexId"></a>
The identifier of the index for the thesaurus.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9-]*`   
Required: Yes

 ** [Name](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-Name"></a>
A new name for the thesaurus.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9_-]*`   
Required: No

 ** [RoleArn](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-RoleArn"></a>
An IAM role that gives Amazon Kendra permissions to access thesaurus file specified in `SourceS3Path`.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1284.  
Pattern: `arn:[a-z0-9-\.]{1,63}:[a-z0-9-\.]{0,63}:[a-z0-9-\.]{0,63}:[a-z0-9-\.]{0,63}:[^/].{0,1023}`   
Required: No

 ** [SourceS3Path](#API_UpdateThesaurus_RequestSyntax) **   <a name="kendra-UpdateThesaurus-request-SourceS3Path"></a>
Information required to find a specific file in an Amazon S3 bucket.  
Type: [S3Path](API_S3Path.md) object  
Required: No

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

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

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

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

 ** AccessDeniedException **   
You don't have sufficient access to perform this action. Please ensure you have the required permission policies and user accounts and try again.  
HTTP Status Code: 400

 ** ConflictException **   
A conflict occurred with the request. Please fix any inconsistences with your resources and try again.  
HTTP Status Code: 400

 ** InternalServerException **   
An issue occurred with the internal server used for your Amazon Kendra service. Please wait a few minutes and try again, or contact [Support](http://aws.amazon.com/contact-us/) for help.  
HTTP Status Code: 500

 ** ResourceNotFoundException **   
The resource you want to use doesn’t exist. Please check you have provided the correct resource and try again.  
HTTP Status Code: 400

 ** ThrottlingException **   
The request was denied due to request throttling. Please reduce the number of requests and try again.  
HTTP Status Code: 400

 ** ValidationException **   
The input fails to satisfy the constraints set by the Amazon Kendra service. Please provide the correct input and try again.  
HTTP Status Code: 400

## See Also
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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/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/kendra-2019-02-03/UpdateThesaurus) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kendra-2019-02-03/UpdateThesaurus)