This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::EC2::IPAMResourceDiscovery IpamResourceDiscoveryOrganizationalUnitExclusion
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If your IPAM is integrated with Amazon Organizations, you can exclude an [organizational unit (OU)](https://docs.amazonaws.cn/organizations/latest/userguide/orgs_getting-started_concepts.html#organizationalunit) from being managed by IPAM. When you exclude an OU, IPAM will not manage the IP addresses in accounts in that OU. For more information, see [Exclude organizational units from IPAM ](https://docs.amazonaws.cn/vpc/latest/ipam/exclude-ous.html) in the *Amazon Virtual Private Cloud IP Address Manager User Guide*.

## Syntax
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To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
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```
{
  "[OrganizationsEntityPath](#cfn-ec2-ipamresourcediscovery-ipamresourcediscoveryorganizationalunitexclusion-organizationsentitypath)" : {{String}}
}
```

### YAML
<a name="aws-properties-ec2-ipamresourcediscovery-ipamresourcediscoveryorganizationalunitexclusion-syntax.yaml"></a>

```
  [OrganizationsEntityPath](#cfn-ec2-ipamresourcediscovery-ipamresourcediscoveryorganizationalunitexclusion-organizationsentitypath): {{String}}
```

## Properties
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`OrganizationsEntityPath`  <a name="cfn-ec2-ipamresourcediscovery-ipamresourcediscoveryorganizationalunitexclusion-organizationsentitypath"></a>
An Amazon Organizations entity path. For more information on the entity path, see [Understand the Amazon Organizations entity path](https://docs.amazonaws.cn/IAM/latest/UserGuide/access_policies_last-accessed-view-data-orgs.html#access_policies_access-advisor-viewing-orgs-entity-path) in the *Amazon Identity and Access Management User Guide*.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)