GET /#Action=ModifyCapacityReservation

Modifies a Capacity Reservation's capacity and the conditions under which it is to be released. You cannot change a Capacity Reservation's instance type, EBS optimization, instance store settings, platform, Availability Zone, or instance eligibility. If you need to modify any of these attributes, we recommend that you cancel the Capacity Reservation, and then create a new one with the required attributes.

Servers

https://ec2.{region}.amazonaws.com
https://ec2.amazonaws.com
https://ec2.{region}.amazonaws.com.cn

Request headers

Name	Type	Required
`X-Amz-Content-Sha256`	String	No
`X-Amz-Credential`	String	No
`X-Amz-Date`	String	No
`X-Amz-Algorithm`	String	No
`X-Amz-SignedHeaders`	String	No
`X-Amz-Security-Token`	String	No
`X-Amz-Signature`	String	No

Query parameters

Name	Type	Required	Description
`Version`	String	Yes	Possible values: `"2016-11-15"`
`CapacityReservationId`	String	Yes	The ID of the Capacity Reservation.
`Accept`	Boolean	No	Reserved. Capacity Reservations you have created are accepted by default.
`InstanceCount`	Integer	No	The number of instances for which to reserve capacity. The number of instances can't be increased or decreased by more than `1000` in a single request.
`EndDate`	String	No	The date and time at which the Capacity Reservation expires. When a Capacity Reservation expires, the reserved capacity is released and you can no longer launch instances into it. The Capacity Reservation's state changes to `expired` when it reaches its end date and time. The Capacity Reservation is cancelled within an hour from the specified time. For example, if you specify 5/31/2019, 13:30:55, the Capacity Reservation is guaranteed to end between 13:30:55 and 14:30:55 on 5/31/2019. You must provide an `EndDate` value if `EndDateType` is `limited`. Omit `EndDate` if `EndDateType` is `unlimited`.
`EndDateType`	String	No	Indicates the way in which the Capacity Reservation ends. A Capacity Reservation can have one of the following end types: `unlimited` - The Capacity Reservation remains active until you explicitly cancel it. Do not provide an `EndDate` value if `EndDateType` is `unlimited`. `limited` - The Capacity Reservation expires automatically at a specified date and time. You must provide an `EndDate` value if `EndDateType` is `limited`. Possible values: `"unlimited"` `"limited"`
`DryRun`	Boolean	No	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`.
`AdditionalInfo`	String	No	Reserved for future use.
`Action`	String	Yes	Possible values: `"ModifyCapacityReservation"`

How to start integrating

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- This loads the API reference documentation and prepares the Http request settings.
Click Test request to test run your request to the API and see the API's response.