# SystemEventMetadata
<a name="API_SystemEventMetadata"></a>

Type-specific metadata for each system event type.

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

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

 ** systemCreated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemCreated"></a>
Metadata for a system created event.  
Type: [SystemCreatedMetadata](API_SystemCreatedMetadata.md) object  
Required: No

 ** systemDeleted **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemDeleted"></a>
Metadata for a system deleted event.  
Type: [SystemDeletedMetadata](API_SystemDeletedMetadata.md) object  
Required: No

 ** systemPolicyAssociated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemPolicyAssociated"></a>
Metadata for a system policy associated event.  
Type: [SystemPolicyAssociatedMetadata](API_SystemPolicyAssociatedMetadata.md) object  
Required: No

 ** systemPolicyDisassociated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemPolicyDisassociated"></a>
Metadata for a system policy disassociated event.  
Type: [SystemPolicyDisassociatedMetadata](API_SystemPolicyDisassociatedMetadata.md) object  
Required: No

 ** systemServiceAssociated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemServiceAssociated"></a>
Metadata for a system service associated event.  
Type: [SystemServiceAssociatedMetadata](API_SystemServiceAssociatedMetadata.md) object  
Required: No

 ** systemServiceDisassociated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemServiceDisassociated"></a>
Metadata for a system service disassociated event.  
Type: [SystemServiceDisassociatedMetadata](API_SystemServiceDisassociatedMetadata.md) object  
Required: No

 ** systemUserJourneyCreated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemUserJourneyCreated"></a>
Metadata for a system user journey created event.  
Type: [SystemUserJourneyCreatedMetadata](API_SystemUserJourneyCreatedMetadata.md) object  
Required: No

 ** systemUserJourneyDeleted **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemUserJourneyDeleted"></a>
Metadata for a system user journey deleted event.  
Type: [SystemUserJourneyDeletedMetadata](API_SystemUserJourneyDeletedMetadata.md) object  
Required: No

 ** systemUserJourneyUpdated **   <a name="ngresiliencehub-Type-SystemEventMetadata-systemUserJourneyUpdated"></a>
Metadata for a system user journey updated event.  
Type: [SystemUserJourneyUpdatedMetadata](API_SystemUserJourneyUpdatedMetadata.md) object  
Required: No

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

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/resiliencehubv2-2026-02-17/SystemEventMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/resiliencehubv2-2026-02-17/SystemEventMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/resiliencehubv2-2026-02-17/SystemEventMetadata)