# CreateSolutionVersion
<a name="API_CreateSolutionVersion"></a>

Trains or retrains an active solution in a Custom dataset group. A solution is created using the [CreateSolution](https://docs.aws.amazon.com/personalize/latest/dg/API_CreateSolution.html) operation and must be in the ACTIVE state before calling `CreateSolutionVersion`. A new version of the solution is created every time you call this operation.

 **Status** 

A solution version can be in one of the following states:
+ CREATE PENDING
+ CREATE IN\$1PROGRESS
+ ACTIVE
+ CREATE FAILED
+ CREATE STOPPING
+ CREATE STOPPED

To get the status of the version, call [DescribeSolutionVersion](https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolutionVersion.html). Wait until the status shows as ACTIVE before calling `CreateCampaign`.

If the status shows as CREATE FAILED, the response includes a `failureReason` key, which describes why the job failed.

**Related APIs**
+  [ListSolutionVersions](https://docs.aws.amazon.com/personalize/latest/dg/API_ListSolutionVersions.html) 
+  [DescribeSolutionVersion](https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolutionVersion.html) 
+  [ListSolutions](https://docs.aws.amazon.com/personalize/latest/dg/API_ListSolutions.html) 
+  [CreateSolution](https://docs.aws.amazon.com/personalize/latest/dg/API_CreateSolution.html) 
+  [DescribeSolution](https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolution.html) 
+  [DeleteSolution](https://docs.aws.amazon.com/personalize/latest/dg/API_DeleteSolution.html) 

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

```
{
   "name": "string",
   "solutionArn": "string",
   "tags": [ 
      { 
         "tagKey": "string",
         "tagValue": "string"
      }
   ],
   "trainingMode": "string"
}
```

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

The request accepts the following data in JSON format.

 ** [name](#API_CreateSolutionVersion_RequestSyntax) **   <a name="personalize-CreateSolutionVersion-request-name"></a>
The name of the solution version.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 63.  
Pattern: `^[a-zA-Z0-9][a-zA-Z0-9\-_]*`   
Required: No

 ** [solutionArn](#API_CreateSolutionVersion_RequestSyntax) **   <a name="personalize-CreateSolutionVersion-request-solutionArn"></a>
The Amazon Resource Name (ARN) of the solution containing the training configuration information.  
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `arn:([a-z\d-]+):personalize:.*:.*:.+`   
Required: Yes

 ** [tags](#API_CreateSolutionVersion_RequestSyntax) **   <a name="personalize-CreateSolutionVersion-request-tags"></a>
A list of [tags](https://docs.aws.amazon.com/personalize/latest/dg/tagging-resources.html) to apply to the solution version.  
Type: Array of [Tag](API_Tag.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 200 items.  
Required: No

 ** [trainingMode](#API_CreateSolutionVersion_RequestSyntax) **   <a name="personalize-CreateSolutionVersion-request-trainingMode"></a>
The scope of training to be performed when creating the solution version. The default is `FULL`. This creates a completely new model based on the entirety of the training data from the datasets in your dataset group.   
If you use [User-Personalization](https://docs.aws.amazon.com/personalize/latest/dg/native-recipe-new-item-USER_PERSONALIZATION.html), you can specify a training mode of `UPDATE`. This updates the model to consider new items for recommendations. It is not a full retraining. You should still complete a full retraining weekly. If you specify `UPDATE`, Amazon Personalize will stop automatic updates for the solution version. To resume updates, create a new solution with training mode set to `FULL` and deploy it in a campaign. For more information about automatic updates, see [Automatic updates](https://docs.aws.amazon.com/personalize/latest/dg/use-case-recipe-features.html#maintaining-with-automatic-updates).   
The `UPDATE` option can only be used when you already have an active solution version created from the input solution using the `FULL` option and the input solution was trained with the [User-Personalization](https://docs.aws.amazon.com/personalize/latest/dg/native-recipe-new-item-USER_PERSONALIZATION.html) recipe or the legacy [HRNN-Coldstart](https://docs.aws.amazon.com/personalize/latest/dg/native-recipe-hrnn-coldstart.html) recipe.  
Type: String  
Valid Values: `FULL | UPDATE | AUTOTRAIN`   
Required: No

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

```
{
   "solutionVersionArn": "string"
}
```

## Response Elements
<a name="API_CreateSolutionVersion_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.

 ** [solutionVersionArn](#API_CreateSolutionVersion_ResponseSyntax) **   <a name="personalize-CreateSolutionVersion-response-solutionVersionArn"></a>
The ARN of the new solution version.  
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `arn:([a-z\d-]+):personalize:.*:.*:.+` 

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

 ** InvalidInputException **   
Provide a valid value for the field or parameter.  
HTTP Status Code: 400

 ** LimitExceededException **   
The limit on the number of requests per second has been exceeded.  
HTTP Status Code: 400

 ** ResourceAlreadyExistsException **   
The specified resource already exists.  
HTTP Status Code: 400

 ** ResourceInUseException **   
The specified resource is in use.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
Could not find the specified resource.  
HTTP Status Code: 400

 ** TooManyTagsException **   
You have exceeded the maximum number of tags you can apply to this resource.   
HTTP Status Code: 400

## See Also
<a name="API_CreateSolutionVersion_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/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/personalize-2018-05-22/CreateSolutionVersion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/personalize-2018-05-22/CreateSolutionVersion)