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::KMS::ReplicaKey Tag
<a name="aws-properties-kms-replicakey-tag"></a>

A key-value pair. A tag consists of a tag key and a tag value. Tag keys and tag values are both required, but tag values can be empty (null) strings.

**Important**  
Do not include confidential or sensitive information in this field. This field may be displayed in plaintext in CloudTrail logs and other output.

For information about the rules that apply to tag keys and tag values, see [User-Defined Tag Restrictions](https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/allocation-tag-restrictions.html) in the *AWS Billing and Cost Management User Guide*.

## Syntax
<a name="aws-properties-kms-replicakey-tag-syntax"></a>

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

### JSON
<a name="aws-properties-kms-replicakey-tag-syntax.json"></a>

```
{
  "[Key](#cfn-kms-replicakey-tag-key)" : String,
  "[Value](#cfn-kms-replicakey-tag-value)" : String
}
```

### YAML
<a name="aws-properties-kms-replicakey-tag-syntax.yaml"></a>

```
  [Key](#cfn-kms-replicakey-tag-key): String
  [Value](#cfn-kms-replicakey-tag-value): String
```

## Properties
<a name="aws-properties-kms-replicakey-tag-properties"></a>

`Key`  <a name="cfn-kms-replicakey-tag-key"></a>
The key name of the tag. You can specify a value that's 1 to 128 Unicode characters in length and can't be prefixed with `aws:`. digits, whitespace, `_`, `.`, `:`, `/`, `=`, `+`, `@`, `-`, and `"`.  
For more information, see [Tag](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-resource-tags.html).  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Value`  <a name="cfn-kms-replicakey-tag-value"></a>
The value for the tag. You can specify a value that's 1 to 256 characters in length. You can use any of the following characters: the set of Unicode letters, digits, whitespace, `_`, `.`, `/`, `=`, `+`, and `-`.  
For more information, see [Tag](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-resource-tags.html).  
*Required*: Yes  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `256`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)