This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).
# AWS::EC2::IPAMPool SourceResource

The resource used to provision CIDRs to a resource planning pool.
## Syntax

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

```
{
 "[ResourceId](#cfn-ec2-ipampool-sourceresource-resourceid)" : {{String}},
 "[ResourceOwner](#cfn-ec2-ipampool-sourceresource-resourceowner)" : {{String}},
 "[ResourceRegion](#cfn-ec2-ipampool-sourceresource-resourceregion)" : {{String}},
 "[ResourceType](#cfn-ec2-ipampool-sourceresource-resourcetype)" : {{String}}
}
```
### YAML

```
 [ResourceId](#cfn-ec2-ipampool-sourceresource-resourceid): {{String}}
 [ResourceOwner](#cfn-ec2-ipampool-sourceresource-resourceowner): {{String}}
 [ResourceRegion](#cfn-ec2-ipampool-sourceresource-resourceregion): {{String}}
 [ResourceType](#cfn-ec2-ipampool-sourceresource-resourcetype): {{String}}
```
## Properties

`ResourceId` 
The source resource ID. 
*Required*: Yes 
*Type*: String 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
`ResourceOwner` 
The source resource owner. 
*Required*: Yes 
*Type*: String 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
`ResourceRegion` 
The source resource Region. 
*Required*: Yes 
*Type*: String 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
`ResourceType` 
The source resource type. 
*Required*: Yes 
*Type*: String 
*Allowed values*: `vpc` 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)</div><div class="naked_ctrl">
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