# ScheduleKeyDeletion
Schedules the deletion of a KMS key. By default, Amazon KMS applies a waiting period of 30 days, but you can specify a waiting period of 7-30 days. When this operation is successful, the key state of the KMS key changes to `PendingDeletion` and the key can't be used in any cryptographic operations. It remains in this state for the duration of the waiting period. Before the waiting period ends, you can use [CancelKeyDeletion](API_CancelKeyDeletion.md) to cancel the deletion of the KMS key. After the waiting period ends, Amazon KMS deletes the KMS key, its key material, and all Amazon KMS data associated with it, including all aliases that refer to it.
**Important**
Deleting a KMS key is a destructive and potentially dangerous operation. When a KMS key is deleted, all data that was encrypted under the KMS key is unrecoverable. (The only exception is a [multi-Region replica key](https://docs.amazonaws.cn/kms/latest/developerguide/multi-region-keys-delete.html), or an [asymmetric or HMAC KMS key with imported key material](https://docs.amazonaws.cn/kms/latest/developerguide/deleting-keys.html#import-delete-key).) To prevent the use of a KMS key without deleting it, use [DisableKey](API_DisableKey.md).
You can schedule the deletion of a multi-Region primary key and its replica keys at any time. However, Amazon KMS will not delete a multi-Region primary key with existing replica keys. If you schedule the deletion of a primary key with replicas, its key state changes to `PendingReplicaDeletion` and it cannot be replicated or used in cryptographic operations. This status can continue indefinitely. When the last of its replicas keys is deleted (not just scheduled), the key state of the primary key changes to `PendingDeletion` and its waiting period (`PendingWindowInDays`) begins. For details, see [Deleting multi-Region keys](https://docs.amazonaws.cn/kms/latest/developerguide/deleting-keys.html#deleting-mrks) in the * Amazon Key Management Service Developer Guide*.
When Amazon KMS [deletes a KMS key from an Amazon CloudHSM key store](https://docs.amazonaws.cn/kms/latest/developerguide/deleting-keys.html#delete-cmk-keystore), it makes a best effort to delete the associated key material from the associated Amazon CloudHSM cluster. However, you might need to manually [delete the orphaned key material](https://docs.amazonaws.cn/kms/latest/developerguide/fix-keystore.html#fix-keystore-orphaned-key) from the cluster and its backups. [Deleting a KMS key from an external key store](https://docs.amazonaws.cn/kms/latest/developerguide/deleting-keys.html#delete-xks-key) has no effect on the associated external key. However, for both types of custom key stores, deleting a KMS key is destructive and irreversible. You cannot decrypt ciphertext encrypted under the KMS key by using only its associated external key or Amazon CloudHSM key. Also, you cannot recreate a KMS key in an external key store by creating a new KMS key with the same key material.
For more information about scheduling a KMS key for deletion, see [Deleting KMS keys](https://docs.amazonaws.cn/kms/latest/developerguide/deleting-keys.html) in the * Amazon Key Management Service Developer Guide*.
The KMS key that you use for this operation must be in a compatible key state. For details, see [Key states of Amazon KMS keys](https://docs.amazonaws.cn/kms/latest/developerguide/key-state.html) in the * Amazon Key Management Service Developer Guide*.
**Cross-account use**: No. You cannot perform this operation on a KMS key in a different Amazon Web Services account.
**Required permissions**: kms:ScheduleKeyDeletion (key policy)
**Related operations**
+ [CancelKeyDeletion](API_CancelKeyDeletion.md)
+ [DisableKey](API_DisableKey.md)
**Eventual consistency**: The Amazon KMS API follows an eventual consistency model. For more information, see [Amazon KMS eventual consistency](https://docs.amazonaws.cn/kms/latest/developerguide/accessing-kms.html#programming-eventual-consistency).
## Request Syntax
```
{
"KeyId": "string",
"PendingWindowInDays": number
}
```
## Request Parameters
For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).
The request accepts the following data in JSON format.
**Note**
In the following list, the required parameters are described first.
** [KeyId](#API_ScheduleKeyDeletion_RequestSyntax) **
The unique identifier of the KMS key to delete.
Specify the key ID or key ARN of the KMS key.
For example:
+ Key ID: `1234abcd-12ab-34cd-56ef-1234567890ab`
+ Key ARN: `arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab`
To get the key ID and key ARN for a KMS key, use [ListKeys](API_ListKeys.md) or [DescribeKey](API_DescribeKey.md).
Type: String
Length Constraints: Minimum length of 1. Maximum length of 2048.
Required: Yes
** [PendingWindowInDays](#API_ScheduleKeyDeletion_RequestSyntax) **
The waiting period, specified in number of days. After the waiting period ends, Amazon KMS deletes the KMS key.
If the KMS key is a multi-Region primary key with replica keys, the waiting period begins when the last of its replica keys is deleted. Otherwise, the waiting period begins immediately.
This value is optional. If you include a value, it must be between 7 and 30, inclusive. If you do not include a value, it defaults to 30. You can use the [https://docs.amazonaws.cn/kms/latest/developerguide/conditions-kms.html#conditions-kms-schedule-key-deletion-pending-window-in-days](https://docs.amazonaws.cn/kms/latest/developerguide/conditions-kms.html#conditions-kms-schedule-key-deletion-pending-window-in-days) condition key to further constrain the values that principals can specify in the `PendingWindowInDays` parameter.
Type: Integer
Valid Range: Minimum value of 7. Maximum value of 30.
Required: No
## Response Syntax
```
{
"DeletionDate": number,
"KeyId": "string",
"KeyState": "string",
"PendingWindowInDays": number
}
```
## Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
** [DeletionDate](#API_ScheduleKeyDeletion_ResponseSyntax) **
The date and time after which Amazon KMS deletes the KMS key.
If the KMS key is a multi-Region primary key with replica keys, this field does not appear. The deletion date for the primary key isn't known until its last replica key is deleted.
Type: Timestamp
** [KeyId](#API_ScheduleKeyDeletion_ResponseSyntax) **
The Amazon Resource Name ([key ARN](https://docs.amazonaws.cn/kms/latest/developerguide/concepts.html#key-id-key-ARN)) of the KMS key whose deletion is scheduled.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 2048.
** [KeyState](#API_ScheduleKeyDeletion_ResponseSyntax) **
The current status of the KMS key.
For more information about how key state affects the use of a KMS key, see [Key states of Amazon KMS keys](https://docs.amazonaws.cn/kms/latest/developerguide/key-state.html) in the * Amazon Key Management Service Developer Guide*.
Type: String
Valid Values: `Creating | Enabled | Disabled | PendingDeletion | PendingImport | PendingReplicaDeletion | Unavailable | Updating`
** [PendingWindowInDays](#API_ScheduleKeyDeletion_ResponseSyntax) **
The waiting period before the KMS key is deleted.
If the KMS key is a multi-Region primary key with replicas, the waiting period begins when the last of its replica keys is deleted. Otherwise, the waiting period begins immediately.
Type: Integer
Valid Range: Minimum value of 7. Maximum value of 30.
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** DependencyTimeoutException **
The system timed out while trying to fulfill the request. You can retry the request.
HTTP Status Code: 500
** InvalidArnException **
The request was rejected because a specified ARN, or an ARN in a key policy, is not valid.
HTTP Status Code: 400
** KMSInternalException **
The request was rejected because an internal exception occurred. The request can be retried.
HTTP Status Code: 500
** KMSInvalidStateException **
The request was rejected because the state of the specified resource is not valid for this request.
This exceptions means one of the following:
+ The key state of the KMS key is not compatible with the operation.
To find the key state, use the [DescribeKey](API_DescribeKey.md) operation. For more information about which key states are compatible with each Amazon KMS operation, see [Key states of Amazon KMS keys](https://docs.amazonaws.cn/kms/latest/developerguide/key-state.html) in the * * Amazon Key Management Service Developer Guide* *.
+ For cryptographic operations on KMS keys in custom key stores, this exception represents a general failure with many possible causes. To identify the cause, see the error message that accompanies the exception.
HTTP Status Code: 400
** NotFoundException **
The request was rejected because the specified entity or resource could not be found.
HTTP Status Code: 400
## Examples
The following examples are formatted for legibility.
### Example Request
This example illustrates one usage of ScheduleKeyDeletion.
```
POST / HTTP/1.1
Host: kms.us-east-2.amazonaws.com
Content-Length: 75
X-Amz-Target: TrentService.ScheduleKeyDeletion
X-Amz-Date: 20161210T003358Z
Content-Type: application/x-amz-json-1.1
Authorization: AWS4-HMAC-SHA256\
Credential=AKIAI44QH8DHBEXAMPLE/20161210/us-east-2/kms/aws4_request,\
SignedHeaders=content-type;host;x-amz-date;x-amz-target,\
Signature=c42c52cf0e4057e004b73a905b0e5da215f63dd33117e7316f760e6223433abb
{
"PendingWindowInDays": 7,
"KeyId": "1234abcd-12ab-34cd-56ef-1234567890ab"
}
```
### Example Response
This example illustrates one usage of ScheduleKeyDeletion.
```
HTTP/1.1 200 OK
Server: Server
Date: Sat, 10 Dec 2016 00:33:58 GMT
Content-Type: application/x-amz-json-1.1
Content-Length: 114
Connection: keep-alive
x-amzn-RequestId: 5704ddf7-be70-11e6-b0c0-3343f53dee45
{
"DeletionDate": 1.4820192E9,
"KeyId": "arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
"PendingWindowInDays": 7
}
```
## See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+ [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/kms-2014-11-01/ScheduleKeyDeletion)
+ [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/kms-2014-11-01/ScheduleKeyDeletion)