# ItemValue
<a name="API_ItemValue"></a>

Describes a related item.

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

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

 ** arn **   <a name="IncidentManager-Type-ItemValue-arn"></a>
The Amazon Resource Name (ARN) of the related item, if the related item is an Amazon resource.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1000.  
Pattern: `arn:aws(-cn|-us-gov)?:[a-z0-9-]*:[a-z0-9-]*:([0-9]{12})?:.+`   
Required: No

 ** metricDefinition **   <a name="IncidentManager-Type-ItemValue-metricDefinition"></a>
The metric definition, if the related item is a metric in Amazon CloudWatch.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 4000.  
Required: No

 ** pagerDutyIncidentDetail **   <a name="IncidentManager-Type-ItemValue-pagerDutyIncidentDetail"></a>
Details about an incident that is associated with a PagerDuty incident.  
Type: [PagerDutyIncidentDetail](API_PagerDutyIncidentDetail.md) object  
Required: No

 ** url **   <a name="IncidentManager-Type-ItemValue-url"></a>
The URL, if the related item is a non-AWS resource.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1000.  
Required: No

## See Also
<a name="API_ItemValue_SeeAlso"></a>

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/ssm-incidents-2018-05-10/ItemValue) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ssm-incidents-2018-05-10/ItemValue) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ssm-incidents-2018-05-10/ItemValue)