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::AppFlow::Flow CustomConnectorDestinationProperties
<a name="aws-properties-appflow-flow-customconnectordestinationproperties"></a>

The properties that are applied when the custom connector is being used as a destination.

## Syntax
<a name="aws-properties-appflow-flow-customconnectordestinationproperties-syntax"></a>

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

### JSON
<a name="aws-properties-appflow-flow-customconnectordestinationproperties-syntax.json"></a>

```
{
  "[CustomProperties](#cfn-appflow-flow-customconnectordestinationproperties-customproperties)" : {{{{{Key}}: {{Value}}, ...}}},
  "[EntityName](#cfn-appflow-flow-customconnectordestinationproperties-entityname)" : {{String}},
  "[ErrorHandlingConfig](#cfn-appflow-flow-customconnectordestinationproperties-errorhandlingconfig)" : {{ErrorHandlingConfig}},
  "[IdFieldNames](#cfn-appflow-flow-customconnectordestinationproperties-idfieldnames)" : {{[ String, ... ]}},
  "[WriteOperationType](#cfn-appflow-flow-customconnectordestinationproperties-writeoperationtype)" : {{String}}
}
```

### YAML
<a name="aws-properties-appflow-flow-customconnectordestinationproperties-syntax.yaml"></a>

```
  [CustomProperties](#cfn-appflow-flow-customconnectordestinationproperties-customproperties): {{
    {{Key}}: {{Value}}}}
  [EntityName](#cfn-appflow-flow-customconnectordestinationproperties-entityname): {{String}}
  [ErrorHandlingConfig](#cfn-appflow-flow-customconnectordestinationproperties-errorhandlingconfig): {{
    ErrorHandlingConfig}}
  [IdFieldNames](#cfn-appflow-flow-customconnectordestinationproperties-idfieldnames): {{
    - String}}
  [WriteOperationType](#cfn-appflow-flow-customconnectordestinationproperties-writeoperationtype): {{String}}
```

## Properties
<a name="aws-properties-appflow-flow-customconnectordestinationproperties-properties"></a>

`CustomProperties`  <a name="cfn-appflow-flow-customconnectordestinationproperties-customproperties"></a>
The custom properties that are specific to the connector when it's used as a destination in the flow.  
*Required*: No  
*Type*: Object of String  
*Pattern*: `^[\w]{1,2048}$`  
*Minimum*: `1`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`EntityName`  <a name="cfn-appflow-flow-customconnectordestinationproperties-entityname"></a>
The entity specified in the custom connector as a destination in the flow.  
*Required*: Yes  
*Type*: String  
*Pattern*: `\S+`  
*Maximum*: `1024`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ErrorHandlingConfig`  <a name="cfn-appflow-flow-customconnectordestinationproperties-errorhandlingconfig"></a>
The settings that determine how Amazon AppFlow handles an error when placing data in the custom connector as destination.  
*Required*: No  
*Type*: [ErrorHandlingConfig](aws-properties-appflow-flow-errorhandlingconfig.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`IdFieldNames`  <a name="cfn-appflow-flow-customconnectordestinationproperties-idfieldnames"></a>
The name of the field that Amazon AppFlow uses as an ID when performing a write operation such as update, delete, or upsert.  
*Required*: No  
*Type*: Array of String  
*Minimum*: `0`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`WriteOperationType`  <a name="cfn-appflow-flow-customconnectordestinationproperties-writeoperationtype"></a>
Specifies the type of write operation to be performed in the custom connector when it's used as destination.  
*Required*: No  
*Type*: String  
*Allowed values*: `INSERT | UPSERT | UPDATE | DELETE`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)