End of support notice: On September 15, 2025, AWS will discontinue support for Amazon Lex V1. After September 15, 2025, you will no longer be able to access the Amazon Lex V1 console or Amazon Lex V1 resources. If you are using Amazon Lex V2, refer to the [Amazon Lex V2 guide](https://docs.aws.amazon.com/lexv2/latest/dg/what-is.html) instead. . 

# CreateSlotTypeVersion
<a name="API_CreateSlotTypeVersion"></a>

Creates a new version of a slot type based on the `$LATEST` version of the specified slot type. If the `$LATEST` version of this resource has not changed since the last version that you created, Amazon Lex doesn't create a new version. It returns the last version that you created. 

**Note**  
You can update only the `$LATEST` version of a slot type. You can't update the numbered versions that you create with the `CreateSlotTypeVersion` operation.

When you create a version of a slot type, Amazon Lex sets the version to 1. Subsequent versions increment by 1. For more information, see [Versioning](versioning-aliases.md#versioning-intro). 

This operation requires permissions for the `lex:CreateSlotTypeVersion` action.

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

```
POST /slottypes/name/versions HTTP/1.1
Content-type: application/json

{
   "checksum": "string"
}
```

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

The request uses the following URI parameters.

 ** [name](#API_CreateSlotTypeVersion_RequestSyntax) **   <a name="lex-CreateSlotTypeVersion-request-uri-name"></a>
The name of the slot type that you want to create a new version for. The name is case sensitive.   
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `^([A-Za-z]_?)+$`   
Required: Yes

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

The request accepts the following data in JSON format.

 ** [checksum](#API_CreateSlotTypeVersion_RequestSyntax) **   <a name="lex-CreateSlotTypeVersion-request-checksum"></a>
Checksum for the `$LATEST` version of the slot type that you want to publish. If you specify a checksum and the `$LATEST` version of the slot type has a different checksum, Amazon Lex returns a `PreconditionFailedException` exception and doesn't publish the new version. If you don't specify a checksum, Amazon Lex publishes the `$LATEST` version.  
Type: String  
Required: No

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

```
HTTP/1.1 201
Content-type: application/json

{
   "checksum": "string",
   "createdDate": number,
   "description": "string",
   "enumerationValues": [ 
      { 
         "synonyms": [ "string" ],
         "value": "string"
      }
   ],
   "lastUpdatedDate": number,
   "name": "string",
   "parentSlotTypeSignature": "string",
   "slotTypeConfigurations": [ 
      { 
         "regexConfiguration": { 
            "pattern": "string"
         }
      }
   ],
   "valueSelectionStrategy": "string",
   "version": "string"
}
```

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

If the action is successful, the service sends back an HTTP 201 response.

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

 ** [checksum](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-checksum"></a>
Checksum of the `$LATEST` version of the slot type.  
Type: String

 ** [createdDate](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-createdDate"></a>
The date that the slot type was created.  
Type: Timestamp

 ** [description](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-description"></a>
A description of the slot type.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 200.

 ** [enumerationValues](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-enumerationValues"></a>
A list of `EnumerationValue` objects that defines the values that the slot type can take.  
Type: Array of [EnumerationValue](API_EnumerationValue.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 10000 items.

 ** [lastUpdatedDate](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-lastUpdatedDate"></a>
The date that the slot type was updated. When you create a resource, the creation date and last update date are the same.  
Type: Timestamp

 ** [name](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-name"></a>
The name of the slot type.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `^([A-Za-z]_?)+$` 

 ** [parentSlotTypeSignature](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-parentSlotTypeSignature"></a>
The built-in slot type used a the parent of the slot type.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `^((AMAZON\.)_?|[A-Za-z]_?)+` 

 ** [slotTypeConfigurations](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-slotTypeConfigurations"></a>
Configuration information that extends the parent built-in slot type.  
Type: Array of [SlotTypeConfiguration](API_SlotTypeConfiguration.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 10 items.

 ** [valueSelectionStrategy](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-valueSelectionStrategy"></a>
The strategy that Amazon Lex uses to determine the value of the slot. For more information, see [PutSlotType](API_PutSlotType.md).  
Type: String  
Valid Values: `ORIGINAL_VALUE | TOP_RESOLUTION` 

 ** [version](#API_CreateSlotTypeVersion_ResponseSyntax) **   <a name="lex-CreateSlotTypeVersion-response-version"></a>
The version assigned to the new slot type version.   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Pattern: `\$LATEST|[0-9]+` 

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

 ** BadRequestException **   
The request is not well formed. For example, a value is invalid or a required field is missing. Check the field values, and try again.  
HTTP Status Code: 400

 ** ConflictException **   
 There was a conflict processing the request. Try your request again.   
HTTP Status Code: 409

 ** InternalFailureException **   
An internal Amazon Lex error occurred. Try your request again.  
HTTP Status Code: 500

 ** LimitExceededException **   
The request exceeded a limit. Try your request again.  
HTTP Status Code: 429

 ** NotFoundException **   
The resource specified in the request was not found. Check the resource and try again.  
HTTP Status Code: 404

 ** PreconditionFailedException **   
 The checksum of the resource that you are trying to change does not match the checksum in the request. Check the resource's checksum and try again.  
HTTP Status Code: 412

## See Also
<a name="API_CreateSlotTypeVersion_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/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/lex-models-2017-04-19/CreateSlotTypeVersion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lex-models-2017-04-19/CreateSlotTypeVersion)