# EvaluationCriteria
<a name="API_EvaluationCriteria"></a>

The evaluation criteria for an alarm. This is a union type that currently supports `PromQLCriteria`.

## Contents
<a name="API_EvaluationCriteria_Contents"></a>

**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** PromQLCriteria **   <a name="ACW-Type-EvaluationCriteria-PromQLCriteria"></a>
The PromQL criteria for the alarm evaluation.  
Type: [AlarmPromQLCriteria](API_AlarmPromQLCriteria.md) object  
Required: No

## 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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/EvaluationCriteria) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/EvaluationCriteria) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/EvaluationCriteria)