# StartNetworkMigrationMappingUpdateConstruct
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A construct update to apply during a mapping update operation.

## Contents
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 ** constructID **   <a name="mgn-Type-StartNetworkMigrationMappingUpdateConstruct-constructID"></a>
The ID of the construct to update.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}`   
Required: Yes

 ** constructType **   <a name="mgn-Type-StartNetworkMigrationMappingUpdateConstruct-constructType"></a>
The type of the construct.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 24.  
Pattern: `AWS::([A-Z\d]){2,10}::[a-zA-Z\d]{2,30}`   
Required: Yes

 ** segmentID **   <a name="mgn-Type-StartNetworkMigrationMappingUpdateConstruct-segmentID"></a>
The ID of the segment containing the construct.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}`   
Required: Yes

 ** operation **   <a name="mgn-Type-StartNetworkMigrationMappingUpdateConstruct-operation"></a>
The operation to perform on the construct.  
Type: [OperationUnion](API_OperationUnion.md) object  
 **Note: **This object is a Union. Only one member of this object can be specified or returned.  
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\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/mgn-2020-02-26/StartNetworkMigrationMappingUpdateConstruct) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/mgn-2020-02-26/StartNetworkMigrationMappingUpdateConstruct) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/mgn-2020-02-26/StartNetworkMigrationMappingUpdateConstruct)