Send Message imbot.v2.Chat.Message.send

If you are developing integrations for Bitrix24 using AI tools (Codex, Claude Code, Cursor), connect to the MCP server so that the assistant can utilize the official REST documentation.

Scope: imbot

Who can execute the method: owner of the registered bot

The method imbot.v2.Chat.Message.send sends a message on behalf of the bot to the specified dialog.

Method Parameters

Required parameters are marked with *

Name
Type

Description

botId*
integer

Bot ID

botToken
string

Unique authorization token for the bot. Required for webhook authorization, not needed for OAuth.

Pass the same botToken that was specified during the chat bot registration

dialogId*
string

Dialog ID. For group chats — chat{chatId}, for personal chats — {userId}

fields
object

Message content. The structure of the object is described below

Parameter fields

Name
Type

Description

message
string

Message text. Maximum length — 20,000 characters. If exceeded, the text is truncated with (...) added

attach
array

Attachments. More details: How to use attachments

keyboard
array

Keyboard with buttons. More details: Working with Keyboards

system
boolean

System message. Allowed values: true, false. Default is false

urlPreview
boolean

Show link previews. Allowed values: true, false. Default is true

replyId
integer

ID of the message being replied to by the bot

templateId
string

UUID of the message template

forwardIds
object

Messages to forward. Format: {uuid: messageId}, where uuid is an arbitrary UUID string as the key, messageId is the ID of the original message. In the response, uuidMap will return {uuid: newMessageId}.

The bot can only forward messages from chats in which it is a participant. Maximum of 100 messages

Boolean fields system, urlPreview, skipConnector, silentConnector accept values true, false, "Y", "N".

Code Examples

How to Use Examples in Documentation

curl -X POST \
          -H "Content-Type: application/json" \
          -H "Accept: application/json" \
          -d '{"botId":456,"botToken":"my_bot_token","dialogId":"chat5","fields":{"message":"Hello from bot!","keyboard":[{"TEXT":"Open","LINK":"https://example.com","BG_COLOR_TOKEN":"primary"}]}}' \
          https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/imbot.v2.Chat.Message.send
        
curl -X POST \
          -H "Content-Type: application/json" \
          -H "Accept: application/json" \
          -d '{"botId":456,"dialogId":"chat5","fields":{"message":"Hello from bot!"},"auth":"**put_access_token_here**"}' \
          https://**put_your_bitrix24_address**/rest/imbot.v2.Chat.Message.send
        
try {
          const response = await $b24.callMethod('imbot.v2.Chat.Message.send', {
            botId: 456,
            dialogId: 'chat5',
            fields: {
              message: 'Hello from bot!',
              keyboard: [
                { TEXT: 'Open', LINK: 'https://example.com', BG_COLOR_TOKEN: 'primary' },
              ],
            },
          });
        
          const { result } = response.getData();
          console.log('result:', result);
        } catch (error) {
          console.error('Error:', error);
        }
        
try {
            $response = $b24Service
                ->core
                ->call(
                    'imbot.v2.Chat.Message.send',
                    [
                        'botId' => 456,
                        'dialogId' => 'chat5',
                        'fields' => [
                            'message' => 'Hello from bot!',
                            'keyboard' => [
                                ['TEXT' => 'Open', 'LINK' => 'https://example.com', 'BG_COLOR_TOKEN' => 'primary'],
                            ],
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'result: ' . print_r($result, true);
        } catch (Throwable $exception) {
            error_log($exception->getMessage());
            echo 'Error: ' . $exception->getMessage();
        }
        
BX24.callMethod(
            'imbot.v2.Chat.Message.send',
            {
                botId: 456,
                dialogId: 'chat5',
                fields: {
                    message: 'Hello from bot!',
                    keyboard: [
                        { TEXT: 'Open', LINK: 'https://example.com', BG_COLOR_TOKEN: 'primary' },
                    ],
                },
            },
            function(result) {
                if (result.error()) {
                    console.error(result.error().ex);
                } else {
                    console.log('Message ID:', result.data().id);
                }
            }
        );
        
require_once('crest.php');
        
        $result = CRest::call(
            'imbot.v2.Chat.Message.send',
            [
                'botId' => 456,
                'dialogId' => 'chat5',
                'fields' => [
                    'message' => 'Hello from bot!',
                ],
            ]
        );
        
        if (!empty($result['error'])) {
            echo 'Error: ' . $result['error_description'];
        } else {
            echo 'Message ID: ' . $result['result']['id'];
        }
        

Response Handling

HTTP Code: 200

{
            "result": {
                "id": 789,
                "uuidMap": {}
            },
            "time": {
                "start": 1728626400.123,
                "finish": 1728626400.234,
                "duration": 0.111,
                "processing": 0.045,
                "date_start": "2024-10-11T10:00:00+02:00",
                "date_finish": "2024-10-11T10:00:00+02:00"
            }
        }
        

Returned Data

Name
Type

Description

result
object

Result of the message sending

result.id
integer

ID of the sent message

result.uuidMap
object

UUID → ID mapping for forwarded messages

time
time

Information about the request execution time

Error Handling

HTTP Status: 400, 403

{
            "error": "EMPTY_MESSAGE",
            "error_description": "Message is empty"
        }
        

Name
type

Description

error
string

String error code. It may consist of digits, Latin letters, and underscores

error_description
error_description

Textual description of the error. The description is not intended to be shown to the end user in its raw form

Possible Error Codes

Code

Description

Value

BOT_TOKEN_NOT_SPECIFIED

Bot token is not specified

botToken is not provided. Required for webhook authorization

BOT_ID_REQUIRED

Bot ID is required

botId is not provided

BOT_NOT_FOUND

Bot not found

Bot not found

BOT_OWNERSHIP_ERROR

Bot is registered by another application

Bot is registered by another application

ACCESS_DENIED

Access denied

Bot is not a participant in the chat

EMPTY_MESSAGE

Message is empty

Empty message — no text or attachments

SENDING_FAILED

Sending failed

Error sending message

Statuses and System Error Codes

HTTP Status: 20x, 40x, 50x

The errors described below may occur when calling any method.

Status

Code
Error Message

Description

500

INTERNAL_SERVER_ERROR
Internal server error

An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support

500

ERROR_UNEXPECTED_ANSWER
Server returned an unexpected response

An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support

503

QUERY_LIMIT_EXCEEDED
Too many requests

The request intensity limit has been exceeded

405

ERROR_BATCH_METHOD_NOT_ALLOWED
Method is not allowed for batch usage

The current method is not permitted for calls using batch

400

ERROR_BATCH_LENGTH_EXCEEDED
Max batch length exceeded

The maximum length of parameters passed to the batch method has been exceeded

401

NO_AUTH_FOUND
Wrong authorization data

Invalid access token or webhook code

400

INVALID_REQUEST
Https required

The HTTPS protocol is required for method calls

503

OVERLOAD_LIMIT
REST API is blocked due to overload

The REST API is blocked due to overload. This is a manual individual block; please contact Bitrix24 technical support to lift it

403

ACCESS_DENIED
REST API is available only on commercial plans

The REST API is only available on commercial plans

403

INVALID_CREDENTIALS
Invalid request credentials

The user associated with the access token or webhook used to call the method lacks the necessary permissions

404

ERROR_MANIFEST_IS_NOT_AVAILABLE
Manifest is not available

The manifest is not available

403

insufficient_scope
The request requires higher privileges than provided by the webhook token

The request requires higher privileges than those provided by the webhook token

401

expired_token
The access token provided has expired

The provided access token has expired

403

user_access_error
The user does not have access to the application

The user does not have access to the application. This means that the application is installed, but the portal administrator has restricted access to this application to specific users only

500

PORTAL_DELETED
Portal was deleted

The public part of the site is closed. To open the public part of the site on an on-premise installation, disable the "Temporary closure of the public part of the site" option. Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site

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