# DisassociateCapacityReservationBillingOwner
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Cancels a pending request to assign billing of the unused capacity of a Capacity Reservation to a consumer account, or revokes a request that has already been accepted. For more information, see [Billing assignment for shared Amazon EC2 Capacity Reservations](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/assign-billing.html).

## Request Parameters
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The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see [Common Query Parameters](CommonParameters.md).

 **CapacityReservationId**   
The ID of the Capacity Reservation.  
Type: String  
Required: Yes

 **DryRun**   
Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is `DryRunOperation`. Otherwise, it is `UnauthorizedOperation`.  
Type: Boolean  
Required: No

 **UnusedReservationBillingOwnerId**   
The ID of the consumer account to which the request was sent.  
Type: String  
Length Constraints: Fixed length of 12.  
Pattern: `[0-9]{12}`   
Required: Yes

## Response Elements
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The following elements are returned by the service.

 **requestId**   
The ID of the request.  
Type: String

 **return**   
Returns `true` if the request succeeds; otherwise, it returns an error.  
Type: Boolean

## Errors
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For information about the errors that are common to all actions, see [Common client error codes](errors-overview.md#CommonErrors).

## 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 Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/DisassociateCapacityReservationBillingOwner)