# DeleteExpiredKeyMaterial
<a name="ct-deleteexpiredkeymaterial"></a>

When you import key material into an AWS KMS key (KMS key), you can set an expiration date and time for that key material. AWS KMS records an entry in your CloudTrail log when you [import the key material](ct-importkeymaterial.md) (with the expiration settings) and when AWS KMS deletes the expired key material. For information about creating KMS key with imported key material, see [Importing key material for AWS KMS keys](importing-keys.md).

The following example shows an AWS CloudTrail log entry generated when AWS KMS deletes the expired key material.

```
{
    "eventVersion": "1.11",
    "userIdentity": {
        "accountId": "111122223333",
        "invokedBy": "AWS Internal"
    },
    "eventTime": "2025-05-22T19:55:11Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "DeleteExpiredKeyMaterial",
    "awsRegion": "us-east-1",
    "sourceIPAddress": "AWS Internal",
    "userAgent": "AWS Internal",
    "requestParameters": null,
    "responseElements": null,
    "eventID": "cfa932fd-0d3a-4a76-a8b8-616863a2b547",
    "readOnly": false,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
        }
    ],
    "eventType": "AwsServiceEvent",
    "recipientAccountId": "111122223333",
    "serviceEventDetails": {
        "keyId": "1234abcd-12ab-34cd-56ef-1234567890ab",
        "keyMaterialId": "123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0"
    },
    "eventCategory": "Management"
}
```

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS KMS. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query kms` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).