# AttachedTo
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An entity that a policy is attached to, identified by its ARN.

## Contents
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 ** arn **   <a name="iamtoolbox-Type-AttachedTo-arn"></a>
The ARN of the entity that the policy is attached to. The ARN format depends on the policy type:  
+ For identity, session, and permissions boundary policies, this is the principal ARN (for example, an IAM role or user ARN).
+ For resource-based policies, this is the resource ARN.
+ For organization control policies (SCPs and RCPs), this is the AWS Organizations ARN of the account, organizational unit, or root.
Type: String  
Pattern: `arn:[^:]*:[^:]*:[^:]*:[^:]*:.*`   
Required: No

## 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 SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/iam-toolbox-2018-05-10/AttachedTo) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iam-toolbox-2018-05-10/AttachedTo) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-toolbox-2018-05-10/AttachedTo)