--- title: channels.togglePreHistoryHidden description: Hide/unhide message history for new channel/supergroup users image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png redirect_from: /API_docs/methods/channels_togglePreHistoryHidden.html --- # Method: channels.togglePreHistoryHidden [Back to methods index](index.md) Hide/unhide message history for new channel/supergroup users ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |channel|[Username, chat ID, Update, Message or InputChannel](../types/InputChannel.md) | Channel/supergroup | Optional| |enabled|[Bool](../types/Bool.md) | Hide/unhide | Yes| ### Return type: [Updates](../types/Updates.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(); $Updates = $MadelineProto->channels->togglePreHistoryHidden(['channel' => InputChannel, 'enabled' => Bool, ]); ``` Or, if you're into Lua: ```lua Updates = channels.togglePreHistoryHidden({channel=InputChannel, enabled=Bool, }) ``` ### 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|CHAT_ID_INVALID|The provided chat id is invalid| |400|CHAT_LINK_EXISTS|The chat is public, you can't hide the history to new users| |400|CHAT_NOT_MODIFIED|The pinned message wasn't modified|