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# AWS::Pinpoint::Campaign WriteTreatmentResource
<a name="aws-properties-pinpoint-campaign-writetreatmentresource"></a>

Specifies the settings for a campaign treatment. A *treatment* is a variation of a campaign that's used for A/B testing of a campaign.

## Syntax
<a name="aws-properties-pinpoint-campaign-writetreatmentresource-syntax"></a>

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

### JSON
<a name="aws-properties-pinpoint-campaign-writetreatmentresource-syntax.json"></a>

```
{
  "[CustomDeliveryConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-customdeliveryconfiguration)" : {{CustomDeliveryConfiguration}},
  "[MessageConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-messageconfiguration)" : {{MessageConfiguration}},
  "[Schedule](#cfn-pinpoint-campaign-writetreatmentresource-schedule)" : {{Schedule}},
  "[SizePercent](#cfn-pinpoint-campaign-writetreatmentresource-sizepercent)" : {{Integer}},
  "[TemplateConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-templateconfiguration)" : {{TemplateConfiguration}},
  "[TreatmentDescription](#cfn-pinpoint-campaign-writetreatmentresource-treatmentdescription)" : {{String}},
  "[TreatmentName](#cfn-pinpoint-campaign-writetreatmentresource-treatmentname)" : {{String}}
}
```

### YAML
<a name="aws-properties-pinpoint-campaign-writetreatmentresource-syntax.yaml"></a>

```
  [CustomDeliveryConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-customdeliveryconfiguration): {{
    CustomDeliveryConfiguration}}
  [MessageConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-messageconfiguration): {{
    MessageConfiguration}}
  [Schedule](#cfn-pinpoint-campaign-writetreatmentresource-schedule): {{
    Schedule}}
  [SizePercent](#cfn-pinpoint-campaign-writetreatmentresource-sizepercent): {{Integer}}
  [TemplateConfiguration](#cfn-pinpoint-campaign-writetreatmentresource-templateconfiguration): {{
    TemplateConfiguration}}
  [TreatmentDescription](#cfn-pinpoint-campaign-writetreatmentresource-treatmentdescription): {{String}}
  [TreatmentName](#cfn-pinpoint-campaign-writetreatmentresource-treatmentname): {{String}}
```

## Properties
<a name="aws-properties-pinpoint-campaign-writetreatmentresource-properties"></a>

`CustomDeliveryConfiguration`  <a name="cfn-pinpoint-campaign-writetreatmentresource-customdeliveryconfiguration"></a>
The delivery configuration settings for sending the treatment through a custom channel. This object is required if the `MessageConfiguration` object for the treatment specifies a `CustomMessage` object.  
*Required*: No  
*Type*: [CustomDeliveryConfiguration](aws-properties-pinpoint-campaign-customdeliveryconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MessageConfiguration`  <a name="cfn-pinpoint-campaign-writetreatmentresource-messageconfiguration"></a>
The message configuration settings for the treatment.  
*Required*: No  
*Type*: [MessageConfiguration](aws-properties-pinpoint-campaign-messageconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Schedule`  <a name="cfn-pinpoint-campaign-writetreatmentresource-schedule"></a>
The schedule settings for the treatment.  
*Required*: No  
*Type*: [Schedule](aws-properties-pinpoint-campaign-schedule.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SizePercent`  <a name="cfn-pinpoint-campaign-writetreatmentresource-sizepercent"></a>
The allocated percentage of users (segment members) to send the treatment to.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TemplateConfiguration`  <a name="cfn-pinpoint-campaign-writetreatmentresource-templateconfiguration"></a>
The message template to use for the treatment.  
*Required*: No  
*Type*: [TemplateConfiguration](aws-properties-pinpoint-campaign-templateconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TreatmentDescription`  <a name="cfn-pinpoint-campaign-writetreatmentresource-treatmentdescription"></a>
A custom description of the treatment.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TreatmentName`  <a name="cfn-pinpoint-campaign-writetreatmentresource-treatmentname"></a>
A custom name for the treatment.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)