# AddPermission
<a name="API_AddPermission"></a>

Adds a statement to a topic's access control policy, granting access for the specified Amazon Web Services accounts to the specified actions.

**Note**  
To remove the ability to change topic permissions, you must deny permissions to the `AddPermission`, `RemovePermission`, and `SetTopicAttributes` actions in your IAM policy.

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

 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 **ActionName.member.N**   
The action you want to allow for the specified principal(s).  
Valid values: Any Amazon SNS action name, for example `Publish`.  
Type: Array of strings  
Required: Yes

 **AWSAccountId.member.N**   
The Amazon Web Services account IDs of the users (principals) who will be given access to the specified actions. The users must have Amazon Web Services account, but do not need to be signed up for this service.  
Type: Array of strings  
Required: Yes

 ** Label **   
A unique identifier for the new policy statement.  
Type: String  
Required: Yes

 ** TopicArn **   
The ARN of the topic whose access control policy you wish to modify.  
Type: String  
Required: Yes

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

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

 ** AuthorizationError **   
Indicates that the user has been denied access to the requested resource.  
HTTP Status Code: 403

 ** InternalError **   
Indicates an internal service error.  
HTTP Status Code: 500

 ** InvalidParameter **   
Indicates that a request parameter does not comply with the associated constraints.  
HTTP Status Code: 400

 ** NotFound **   
Indicates that the requested resource does not exist.  
HTTP Status Code: 404

## Examples
<a name="API_AddPermission_Examples"></a>

The structure of `AUTHPARAMS` depends on the signature of the API request. For more information, see [Examples of the complete Signature Version 4 signing process (Python)](https://docs.amazonaws.cn/general/latest/gr/sigv4-signed-request-examples.html) in the * Amazon General Reference*.

### Example
<a name="API_AddPermission_Example_1"></a>

This example illustrates one usage of AddPermission.

#### Sample Request
<a name="API_AddPermission_Example_1_Request"></a>

```
https://sns.us-east-2.amazonaws.com/?Action=AddPermission
&TopicArn=arn%3Aaws%3Asns%3Aus-east-2%3A123456789012%3AMy-Test
&Label=NewPermission
&ActionName.member.1=Publish
&ActionName.member.2=GetTopicAttributes
&AWSAccountId.member.1=987654321000
&AWSAccountId.member.2=876543210000
&Version=2010-03-31
&AUTHPARAMS
```

#### Sample Response
<a name="API_AddPermission_Example_1_Response"></a>

```
<AddPermissionResponse xmlns="https://sns.amazonaws.com/doc/2010-03-31/">
    <ResponseMetadata>
        <RequestId>6a213e4e-33a8-11df-9540-99d0768312d3</RequestId>
    </ResponseMetadata>
</AddPermissionResponse>
```

## See Also
<a name="API_AddPermission_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/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/sns-2010-03-31/AddPermission) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/sns-2010-03-31/AddPermission)