# AddAttachmentsToSet
<a name="API_AddAttachmentsToSet"></a>

Adds one or more attachments to an attachment set. 

An attachment set is a temporary container for attachments that you add to a case or case communication. The set is available for 1 hour after it's created. The `expiryTime` returned in the response is when the set expires. 

**Note**  
You must have an AWS Business Support\+, AWS Enterprise Support, or AWS Unified Operations plan to use the AWS Support API. If you're in an AWS Region that doesn't offer one of these AWS Support plans, or if you haven't transitioned to one of these plans, you can use the AWS Support API with a Business, Enterprise On-Ramp, or Enterprise Support plan.
If you call the AWS Support API from an account that doesn't have an AWS Business Support\+, AWS Enterprise Support, or AWS Unified Operations plan, the `SubscriptionRequiredException` error message appears. For information about changing your support plan, see [AWS Support](http://aws.amazon.com/premiumsupport/).

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

```
{
   "attachments": [ 
      { 
         "data": {{blob}},
         "fileName": "{{string}}"
      }
   ],
   "attachmentSetId": "{{string}}",
   "dryRun": {{boolean}}
}
```

## Request Parameters
<a name="API_AddAttachmentsToSet_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.

 ** [attachments](#API_AddAttachmentsToSet_RequestSyntax) **   <a name="AWSSupport-AddAttachmentsToSet-request-attachments"></a>
One or more attachments to add to the set. You can add up to three attachments per set. The size limit is 5 MB per attachment.  
In the `Attachment` object, use the `data` parameter to specify the contents of the attachment file. In the previous request syntax, the value for `data` appear as `blob`, which is represented as a base64-encoded string. The value for `fileName` is the name of the attachment, such as `troubleshoot-screenshot.png`.  
Type: Array of [Attachment](API_Attachment.md) objects

 ** [attachmentSetId](#API_AddAttachmentsToSet_RequestSyntax) **   <a name="AWSSupport-AddAttachmentsToSet-request-attachmentSetId"></a>
The ID of the attachment set. If an `attachmentSetId` is not specified, a new attachment set is created, and the ID of the set is returned in the response. If an `attachmentSetId` is specified, the attachments are added to the specified set, if it exists.  
Type: String

 ** [dryRun](#API_AddAttachmentsToSet_RequestSyntax) **   <a name="AWSSupport-AddAttachmentsToSet-request-dryRun"></a>
Specifies whether to validate the request without actually adding the attachments. When set to `true`, the request is validated but no attachments are stored, and the operation returns a `DryRunOperationException`. When omitted or set to `false`, the request runs normally.  
Type: Boolean

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

```
{
   "attachmentSetId": "string",
   "expiryTime": "string"
}
```

## Response Elements
<a name="API_AddAttachmentsToSet_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.

 ** [attachmentSetId](#API_AddAttachmentsToSet_ResponseSyntax) **   <a name="AWSSupport-AddAttachmentsToSet-response-attachmentSetId"></a>
The ID of the attachment set. If an `attachmentSetId` was not specified, a new attachment set is created, and the ID of the set is returned in the response. If an `attachmentSetId` was specified, the attachments are added to the specified set, if it exists.  
Type: String

 ** [expiryTime](#API_AddAttachmentsToSet_ResponseSyntax) **   <a name="AWSSupport-AddAttachmentsToSet-response-expiryTime"></a>
The time and date when the attachment set expires.  
Type: String

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

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

 ** AttachmentLimitExceeded **   
The limit for the number of attachment sets created in a short period of time has been exceeded.    
 ** message **   
The limit for the number of attachment sets created in a short period of time has been exceeded.
HTTP Status Code: 400

 ** AttachmentSetExpired **   
The expiration time of the attachment set has passed. The set expires 1 hour after it is created.    
 ** message **   
The expiration time of the attachment set has passed. The set expires one hour after it is created.
HTTP Status Code: 400

 ** AttachmentSetIdNotFound **   
An attachment set with the specified ID could not be found.    
 ** message **   
An attachment set with the specified ID could not be found.
HTTP Status Code: 400

 ** AttachmentSetSizeLimitExceeded **   
A limit for the size of an attachment set has been exceeded. The limits are three attachments and 5 MB per attachment.    
 ** message **   
A limit for the size of an attachment set has been exceeded. The limits are three attachments and 5 MB per attachment.
HTTP Status Code: 400

 ** DryRunOperationException **   
The request was valid, but the operation wasn't performed because `dryRun` was set to `true`.  
HTTP Status Code: 400

 ** InternalServerError **   
An internal server error occurred.    
 ** message **   
An internal server error occurred.
HTTP Status Code: 500

## See Also
<a name="API_AddAttachmentsToSet_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/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for Python (Boto3)](https://docs.aws.amazon.com/goto/boto3/support-2013-04-15/AddAttachmentsToSet) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/support-2013-04-15/AddAttachmentsToSet)