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::S3::Bucket SourceSelectionCriteria
<a name="aws-properties-s3-bucket-sourceselectioncriteria"></a>

A container that describes additional filters for identifying the source objects that you want to replicate. You can choose to enable or disable the replication of these objects.

## Syntax
<a name="aws-properties-s3-bucket-sourceselectioncriteria-syntax"></a>

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

### JSON
<a name="aws-properties-s3-bucket-sourceselectioncriteria-syntax.json"></a>

```
{
  "[ReplicaModifications](#cfn-s3-bucket-sourceselectioncriteria-replicamodifications)" : ReplicaModifications,
  "[SseKmsEncryptedObjects](#cfn-s3-bucket-sourceselectioncriteria-ssekmsencryptedobjects)" : SseKmsEncryptedObjects
}
```

### YAML
<a name="aws-properties-s3-bucket-sourceselectioncriteria-syntax.yaml"></a>

```
  [ReplicaModifications](#cfn-s3-bucket-sourceselectioncriteria-replicamodifications): 
    ReplicaModifications
  [SseKmsEncryptedObjects](#cfn-s3-bucket-sourceselectioncriteria-ssekmsencryptedobjects): 
    SseKmsEncryptedObjects
```

## Properties
<a name="aws-properties-s3-bucket-sourceselectioncriteria-properties"></a>

`ReplicaModifications`  <a name="cfn-s3-bucket-sourceselectioncriteria-replicamodifications"></a>
A filter that you can specify for selection for modifications on replicas.   
*Required*: No  
*Type*: [ReplicaModifications](aws-properties-s3-bucket-replicamodifications.md)  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SseKmsEncryptedObjects`  <a name="cfn-s3-bucket-sourceselectioncriteria-ssekmsencryptedobjects"></a>
 A container for filter information for the selection of Amazon S3 objects encrypted with Amazon KMS.  
*Required*: No  
*Type*: [SseKmsEncryptedObjects](aws-properties-s3-bucket-ssekmsencryptedobjects.md)  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)