There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `UpdateAlias` with an AWS SDK or CLI
<a name="kms_example_kms_UpdateAlias_section"></a>

The following code examples show how to use `UpdateAlias`.

------
#### [ CLI ]

**AWS CLI**  
**To associate an alias with a different KMS key**  
The following `update-alias` example associates the alias `alias/test-key` with a different KMS key.  
The `--alias-name` parameter specifies the alias. The alias name value must begin with `alias/`.The `--target-key-id` parameter specifies the KMS key to associate with the alias. You don't need to specify the current KMS key for the alias.  

```
aws kms update-alias \
    --alias-name alias/test-key \
    --target-key-id 1234abcd-12ab-34cd-56ef-1234567890ab
```
This command produces no output. To find the alias, use the `list-aliases` command.  
For more information, see [Updating aliases](https://docs.aws.amazon.com/kms/latest/developerguide/alias-manage.html#alias-update) in the *AWS Key Management Service Developer Guide*.  
+  For API details, see [UpdateAlias](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/kms/update-alias.html) in *AWS CLI Command Reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/kms#code-examples). 

```
class AliasManager:
    def __init__(self, kms_client):
        self.kms_client = kms_client
        self.created_key = None

    @classmethod
    def from_client(cls) -> "AliasManager":
        """
        Creates an AliasManager instance with a default KMS client.

        :return: An instance of AliasManager initialized with the default KMS client.
        """
        kms_client = boto3.client("kms")
        return cls(kms_client)


    def update_alias(self, alias, current_key_id):
        """
        Updates an alias by assigning it to another key.

        :param alias: The alias to reassign.
        :param current_key_id: The ARN or ID of the key currently associated with the alias.
        """
        new_key_id = input(
            f"Alias {alias} is currently associated with {current_key_id}. "
            f"Enter another key ID or ARN that you want to associate with {alias}: "
        )
        if new_key_id != "":
            try:
                self.kms_client.update_alias(AliasName=alias, TargetKeyId=new_key_id)
            except ClientError as err:
                logger.error(
                    "Couldn't associate alias %s with key %s. Here's why: %s",
                    alias,
                    new_key_id,
                    err.response["Error"]["Message"],
                )
            else:
                print(f"Alias {alias} is now associated with key {new_key_id}.")
        else:
            print("Skipping alias update.")
```
+  For API details, see [UpdateAlias](https://docs.aws.amazon.com/goto/boto3/kms-2014-11-01/UpdateAlias) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/kms#code-examples). 

```
    TRY.
        " iv_alias_name = 'alias/my-key-alias'
        " iv_target_key_id = 'arn:aws:kms:us-east-1:123456789012:key/5678dcba-56cd-78ef-90ab-5678901234cd'
        lo_kms->updatealias(
          iv_aliasname = iv_alias_name
          iv_targetkeyid = iv_target_key_id
        ).
        MESSAGE 'Alias updated successfully.' TYPE 'I'.
      CATCH /aws1/cx_kmsnotfoundexception.
        MESSAGE 'Alias or key not found.' TYPE 'E'.
      CATCH /aws1/cx_kmskmsinternalex.
        MESSAGE 'An internal error occurred.' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [UpdateAlias](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

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