--- title: channels.deleteUserHistory description: Delete all messages sent by a certain user in a [supergroup](https://core.telegram.org/api/channel) image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png redirect_from: /API_docs/methods/channels_deleteUserHistory.html --- # Method: channels.deleteUserHistory [Back to methods index](index.md) Delete all messages sent by a certain user in a [supergroup](https://core.telegram.org/api/channel) ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |channel|[Username, chat ID, Update, Message or InputChannel](../types/InputChannel.md) | [Supergroup](https://core.telegram.org/api/channel) | Optional| |user\_id|[Username, chat ID, Update, Message or InputUser](../types/InputUser.md) | User whose messages should be deleted | Optional| ### Return type: [messages.AffectedHistory](../types/messages.AffectedHistory.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(); $messages.AffectedHistory = $MadelineProto->channels->deleteUserHistory(['channel' => InputChannel, 'user_id' => InputUser, ]); ``` Or, if you're into Lua: ```lua messages.AffectedHistory = channels.deleteUserHistory({channel=InputChannel, user_id=InputUser, }) ``` ### Errors | Code | Type | Description | |------|----------|---------------| |400|CHANNEL_INVALID|The provided channel is invalid| |400|CHANNEL_PRIVATE|You haven't joined this channel/supergroup| |400|CHAT_ADMIN_REQUIRED|You must be an admin in this chat to do this| |400|MSG_ID_INVALID|Invalid message ID provided| |400|USER_ID_INVALID|The provided user ID is invalid| |403|CHAT_WRITE_FORBIDDEN|You can't write in this chat|