AWS SDK for .NET Documentation
InsufficientDataActions Property
AmazonAmazon.CloudWatch.ModelMetricAlarmInsufficientDataActions Did this page help you?   Yes   No    Tell us about it...
The list of actions to execute when this alarm transitions into an INSUFFICIENT_DATA state from any other state. Each action is specified as an Amazon Resource Number (ARN). Currently the only actions supported are publishing to an Amazon SNS topic or triggering an Auto Scaling policy. The current WSDL lists this attribute as UnknownActions.

Constraints:

Length
0 - 5

Declaration Syntax
C#
public List<string> InsufficientDataActions { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)