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::Wisdom::KnowledgeBase Tag
<a name="aws-properties-wisdom-knowledgebase-tag"></a>

Metadata to assign to the Wisdom knowledge base. Tags help organize and categorize your Amazon Connect Wisdom resources. Each tag consists of a key and an optional value, both of which you define.

## Syntax
<a name="aws-properties-wisdom-knowledgebase-tag-syntax"></a>

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

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

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

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

```
  [Key](#cfn-wisdom-knowledgebase-tag-key): String
  [Value](#cfn-wisdom-knowledgebase-tag-value): String
```

## Properties
<a name="aws-properties-wisdom-knowledgebase-tag-properties"></a>

`Key`  <a name="cfn-wisdom-knowledgebase-tag-key"></a>
The key-value string map. The valid character set is `[a-zA-Z+-=._:/]`. The tag key can be up to 128 characters and must not start with `aws:`.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^(?!aws:)[a-zA-Z+-=._:/]+$`  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`Value`  <a name="cfn-wisdom-knowledgebase-tag-value"></a>
The tag value can be up to 256 characters.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `256`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)