Add a comment to the message log.blogcomment.add

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: log

Who can execute the method: any user

The method log.blogcomment.add adds a comment to a News Feed message.

Method Parameters

Required parameters are marked with *

Name `type`	Description
POST_ID* `integer`	Identifier of the News Feed message. The message identifier can be obtained using the method log.blogpost.get
TEXT* `string`	The text of the comment. It is considered during duplication checks and is saved in the `POST_TEXT` field
FILES `array`	An array of files described according to the file handling rules. Files will be uploaded to the user's Drive and linked to the comment
USER_ID `integer`	Identifier of the user on behalf of whom the comment is published. Available only to administrators. By default, the current user initiating the method call is used. The user identifier can be obtained using the method user.get or user.search

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

PHP

BX24.js

PHP CRest

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"POST_ID":403,"TEXT":"Comment on the post","USER_ID":27,"FILES":[["example.txt","SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg=="]]}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/log.blogcomment.add

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"POST_ID":403,"TEXT":"Comment on the post","USER_ID":27,"FILES":[["example.txt","SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg=="]],"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/log.blogcomment.add

try {
          const response = await $b24.callMethod(
            'log.blogcomment.add',
            {
              POST_ID: 403,
              TEXT: 'Comment on the post',
              USER_ID: 27,
              FILES: [
                [
                  'example.txt',
                  'SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg==',
                ],
              ],
            }
          );
        
          const { result } = response.getData();
          console.log('Created comment:', result);
        } catch (error) {
          console.error('Error adding comment:', error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'log.blogcomment.add',
                    [
                        'POST_ID' => 403,
                        'TEXT'    => 'Comment on the post',
                        'USER_ID' => 27,
                        'FILES'   => [
                            [
                                'example.txt',
                                'SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg==',
                            ],
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            if ($result->error()) {
                echo 'Error: ' . $result->error();
            } else {
                echo 'Created comment ID: ' . $result->data();
            }
        } catch (Throwable $exception) {
            error_log($exception->getMessage());
            echo 'Error adding blog comment: ' . $exception->getMessage();
        }

BX24.callMethod('log.blogcomment.add', {
            POST_ID: 403,
            TEXT: 'Comment on the post',
            USER_ID: 27,
            FILES: [
                [
                    'example.txt',
                    'SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg==',
                ],
            ]
        }, 
        function(result) {
                if (result.error()) {
                    console.error(result.error());
                } else {
                    console.info(result.data());
                }
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'log.blogcomment.add',
            [
                'POST_ID' => 403,
                'TEXT'    => 'Comment on the post',
                'USER_ID' => 27,
                'FILES'   => [
                    [
                        'example.txt',
                        'SXQncyBhIHRlc3QgZmlsZSBmb3IgQml0cml4IFJlc3QgQVBJLg==',
                    ],
                ],
            ]
        );
        
        if (!empty($result['error'])) {
            echo 'Error: ' . $result['error_description'];
        } else {
            echo 'Created comment ID: ' . $result['result'];
        }

Response Handling

HTTP status: 200

{
            "result": 312,
            "time": {
                "start": 1728904800.123456,
                "finish": 1728904800.398112,
                "duration": 0.2746560573577881,
                "processing": 0.10234594345092773,
                "date_start": "2025-10-14T12:40:00+02:00",
                "date_finish": "2025-10-14T12:40:00+02:00",
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `integer`	Identifier of the created comment
time `time`	Information about the request execution time

Error Handling

HTTP status: 400

{
            "error": "",
            "error_description": "No blog module installed"
        }

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 Errors

Code	Description	Value
`-`	`No blog module installed`	The `blog` module is not installed
`-`	`No post found`	The News Feed message with the provided `POST_ID` was not found or is unavailable
`-`	`No blog found`	Failed to retrieve the blog associated with the message
`-`	`Duplicate comment`	A similar comment has already been published, checked only for posts without attachments
`-`	`No permissions`	The user does not have permission to add a comment to the message
`-`	`Blog comment hasn't been added`	Internal error while saving the comment

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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Overview of methods

Get user comments

Add a comment to the message log.blogcomment.add

Method ParametersMethod Parameters

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

Error HandlingError Handling

Possible ErrorsPossible Errors

Statuses and System Error CodesStatuses and System Error Codes

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