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::Cases::CaseRule OperandOne
<a name="aws-properties-cases-caserule-operandone"></a>

Represents the left hand operand in the condition. In the Amazon Connect admin website, case rules are known as *case field conditions*. For more information about case field conditions, see [Add case field conditions to a case template](https://docs.aws.amazon.com/connect/latest/adminguide/case-field-conditions.html).

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

### JSON
<a name="aws-properties-cases-caserule-operandone-syntax.json"></a>

```
{
  "[FieldId](#cfn-cases-caserule-operandone-fieldid)" : String
}
```

### YAML
<a name="aws-properties-cases-caserule-operandone-syntax.yaml"></a>

```
  [FieldId](#cfn-cases-caserule-operandone-fieldid): String
```

## Properties
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`FieldId`  <a name="cfn-cases-caserule-operandone-fieldid"></a>
The field ID that this operand should take the value of.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `500`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)