Adds a user to a chat and sends a service message on it.
messages.statedMessage#d07ae726 message:Message chats:Vector<Chat> users:Vector<User> pts:int seq:int = messages.StatedMessage;
messages.statedMessageLink#a9af2881 message:Message chats:Vector<Chat> users:Vector<User> links:Vector<contacts.Link> pts:int seq:int = messages.StatedMessage;
---functions---
messages.addChatUser#2ee9ee9e chat_id:int user_id:InputUser fwd_limit:int = messages.StatedMessage;
Parameters
| Name | 
Type | 
Description | 
| chat_id | 
long | 
Chat ID | 
| user_id | 
InputUser | 
User ID to be added | 
| fwd_limit | 
int | 
Number of last messages to be forwarded | 
Result
Updates
Possible errors
| Code | 
Type | 
Description | 
| 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. | 
| 403 | 
CHAT_WRITE_FORBIDDEN | 
You can't write in this chat. | 
| 400 | 
INPUT_USER_DEACTIVATED | 
The specified user was deleted. | 
| 400 | 
PEER_ID_INVALID | 
The provided peer id is invalid. | 
| 400 | 
USERS_TOO_MUCH | 
The maximum number of users has been exceeded (to create a chat, for example). | 
| 400 | 
USER_ALREADY_PARTICIPANT | 
The user is already in the group. | 
| 400 | 
USER_ID_INVALID | 
The provided user ID is invalid. | 
| 400 | 
USER_IS_BLOCKED | 
You were blocked by this user. | 
| 403 | 
USER_NOT_MUTUAL_CONTACT | 
The provided user is not a mutual contact. | 
| 403 | 
USER_PRIVACY_RESTRICTED | 
The user's privacy settings do not allow you to do this. | 
| 400 | 
YOU_BLOCKED_USER | 
You blocked this user. |