# AcknowledgeFlow
<a name="API_AcknowledgeFlow"></a>

Specifies whether to get notified for alarm state changes.

## Contents
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 ** enabled **   <a name="iotevents-Type-AcknowledgeFlow-enabled"></a>
The value must be `TRUE` or `FALSE`. If `TRUE`, you receive a notification when the alarm state changes. You must choose to acknowledge the notification before the alarm state can return to `NORMAL`. If `FALSE`, you won't receive notifications. The alarm automatically changes to the `NORMAL` state when the input property value returns to the specified range.  
Type: Boolean  
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iotevents-2018-07-27/AcknowledgeFlow) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotevents-2018-07-27/AcknowledgeFlow) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotevents-2018-07-27/AcknowledgeFlow)