messages.addChatUser

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

May also return 0-N updates of type updateGroupInvitePrivacyForbidden: it indicates we couldn't add a user to a chat because of their privacy settings; if required, an invite link can be shared with the user, instead.

updatesTooLong#e317af7e = Updates;
updateShortMessage#313bc7f8 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int user_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
updateShortChatMessage#4d6deea5 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int from_id:long chat_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
updateShort#78d4dec1 update:Update date:int = Updates;
updatesCombined#725b04c3 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq_start:int seq:int = Updates;
updates#74ae4240 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq:int = Updates;
updateShortSentMessage#9015e101 flags:# out:flags.1?true id:int pts:int pts_count:int date:int media:flags.9?MessageMedia entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
---functions---
messages.addChatUser#f24753e3 chat_id:long user_id:InputUser fwd_limit:int = Updates;

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 BOT_GROUPS_BLOCKED This bot can't be added to groups.
403 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 MSG_ID_INVALID Invalid message ID provided.
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.

Related pages

updateGroupInvitePrivacyForbidden

0-N updates of this type may be returned only when invoking messages.addChatUser, channels.inviteToChannel or messages.createChat: it indicates we couldn't add a user to a chat because of their privacy settings; if required, an invite link can be shared with the user, instead.

Invites

Chats and channels may have a public username or a private invite link: private invite links may be further enhanced with per-user join requests.