--- title: account.updateUsername description: Changes username for the current user. image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Method: account.updateUsername [Back to methods index](index.md) Changes username for the current user. ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |username|[string](../types/string.md) | username or empty string if username is to be removed<br>Accepted characters: a-z (case-insensitive), 0-9 and underscores.<br>Length: 5-32 characters. | Yes| ### Return type: [User](../types/User.md) ### Can bots use this method: **NO** ### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)): ```php if (!file_exists('madeline.php')) { copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php'); } include 'madeline.php'; $MadelineProto = new \danog\MadelineProto\API('session.madeline'); $MadelineProto->start(); $User = $MadelineProto->account->updateUsername(['username' => 'string', ]); ``` Or, if you're into Lua: ```lua User = account.updateUsername({username='string', }) ``` ### Errors | Code | Type | Description | |------|----------|---------------| |400|USERNAME_INVALID|The provided username is not valid| |400|USERNAME_NOT_MODIFIED|The username was not modified| |400|USERNAME_OCCUPIED|The provided username is already occupied| |401|SESSION_PASSWORD_NEEDED|2FA is enabled, use a password to login|