# messages.addChatUser

> Adds a user to a chat and sends a service message on it.

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Adds a user to a chat and sends a service message on it.

### Parameters:

| Name     |    Type       | Description | Required |
|----------|---------------|-------------|----------|
|chat\_id|[Username, chat ID, Update, Message or InputPeer](/API_docs/types/InputPeer.html) |  | Optional|
|user\_id|[Username, chat ID, Update, Message or InputUser](/API_docs/types/InputUser.html) | User ID to be added | Optional|
|fwd\_limit|[int](/API_docs/types/int.html) | Number of last messages to be forwarded | Optional|


### Return type: [messages.InvitedUsers](/API_docs/types/messages.InvitedUsers.html)

### Can users use this method: **YES**


### Can bots use this method: **NO**


### Can bots use this method over a business connection with the `businessConnectionId` flag: **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_InvitedUsers = $MadelineProto->messages->addChatUser(chat_id: $InputPeer, user_id: $InputUser, fwd_limit: $int, );
```