Get Task by ID tasks.task.get

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: task

Who can execute the method: any user

The method tasks.task.get returns information about a task by its ID.

Access to the data depends on permissions:

Administrators can see all tasks,
Managers can see their employees' tasks,
Others can only see tasks available to them.

Method Parameters

Name
type

Description

taskId
integer

The ID of the task.

The task ID can be obtained when creating a new task or by using the get task list method

select
array

An array of record fields that will be returned by the method. You can specify only the fields you need. If the array contains the value "*", all available fields will be returned.

By default, it returns all fields except for custom ones. It is recommended to specify specific fields in the selection, as default fields may change.

System fields UF_CRM_TASK, UF_TASK_WEBDAV_FILES, and UF_MAIL_MESSAGE are not returned by default. Specify one of these fields in SELECT to retrieve their values.

To retrieve custom fields, include them in SELECT. You can find the names of custom fields using the tasks.task.getFields method.

The field CHAT_ID, the chat ID for the new task card, is returned by default. Use its value to work with chat methods.

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 '{"taskId":8017,"select":["ID","TITLE","DESCRIPTION","CREATED_BY","RESPONSIBLE_ID","DEADLINE","UF_CRM_TASK","UF_TASK_WEBDAV_FILES"]}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/tasks.task.get

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"taskId":8017,"select":["ID","TITLE","DESCRIPTION","CREATED_BY","RESPONSIBLE_ID","DEADLINE","UF_CRM_TASK","UF_TASK_WEBDAV_FILES"],"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/tasks.task.get

try
        {
            const response = await $b24.callMethod(
                'tasks.task.get',
                {
                    taskId: 8017,
                    select: [
                        'ID',
                        'TITLE',
                        'DESCRIPTION',
                        'CREATED_BY',
                        'RESPONSIBLE_ID',
                        'DEADLINE',
                        'UF_CRM_TASK',
                        'UF_TASK_WEBDAV_FILES'
                    ]
                }
            );
            
            const result = response.getData().result;
            console.log('Fetched task:', result);
            processResult(result);
        }
        catch( error )
        {
            console.error('Error:', error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'tasks.task.get',
                    [
                        'taskId' => 8017,
                        'select' => [
                            'ID',
                            'TITLE',
                            'DESCRIPTION',
                            'CREATED_BY',
                            'RESPONSIBLE_ID',
                            'DEADLINE',
                            'UF_CRM_TASK',
                            'UF_TASK_WEBDAV_FILES'
                        ]
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error fetching task: ' . $e->getMessage();
        }

BX24.callMethod(
            'tasks.task.get',
            {
                taskId: 8017,
                select: [
                    'ID',
                    'TITLE',
                    'DESCRIPTION',
                    'CREATED_BY',
                    'RESPONSIBLE_ID',
                    'DEADLINE',
                    'UF_CRM_TASK',
                    'UF_TASK_WEBDAV_FILES'
                ]
            },
            function(result){
                console.info(result.data());
                console.log(result);
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'tasks.task.get',
            [
                'taskId' => 8017,
                'select' => [
                    'ID',
                    'TITLE',
                    'DESCRIPTION',
                    'CREATED_BY',
                    'RESPONSIBLE_ID',
                    'DEADLINE',
                    'UF_CRM_TASK',
                    'UF_TASK_WEBDAV_FILES'
                ]
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

Response Handling

HTTP Status: 200

{
            "result": {
                "task": {
                    "id": "8017",
                    "title": "Task Example",
                    "description": "Task description with [B]formatting[/B]",
                    "createdBy": "503",
                    "responsibleId": "547",
                    "deadline": "2025-10-24T19:00:00+02:00",
                    "ufCrmTask": ["C_627", "CO_591", "L_1177", "T88_3", "D_1723"],
                    "ufTaskWebdavFiles": [1065, 1077],
                    "ufMailMessage": null,
                    "descriptionInBbcode": "Y",
                    "favorite": "Y",
                    "group": [],
                    "creator": {
                        "id": "503",
                        "name": "Maria Johnson",
                        "link": "/company/personal/user/503/",
                        "icon": "https://mysite.com/b17053/resize_cache/45749/c0120a8d7c10d63c83e32398d1ec4d9e/main/c89/c89c6b7301880958ea704b5a8470635c/4R5A1256.png",
                        "workPosition": "admin"
                    },
                    "responsible": {
                        "id": "547",
                        "name": "Maria",
                        "link": "/company/personal/user/547/",
                        "icon": "/bitrix/images/tasks/default_avatar.png",
                        "workPosition": "Tester"
                    },
                    "action": {
                        "accept": false,
                        "decline": false,
                        "complete": true,
                        "approve": false,
                        "disapprove": false,
                        "start": true,
                        "pause": false,
                        "delegate": true,
                        "remove": true,
                        "edit": true,
                        "defer": true,
                        "renew": false,
                        "create": true,
                        "changeDeadline": true,
                        "checklistAddItems": true,
                        "addFavorite": false,
                        "deleteFavorite": true,
                        "rate": true,
                        "take": false,
                        "edit.originator": false,
                        "checklist.reorder": true,
                        "elapsedtime.add": true,
                        "dayplan.timer.toggle": true,
                        "edit.plan": true,
                        "checklist.add": true,
                        "favorite.add": false,
                        "favorite.delete": true
                    }
                }
            },
            "time": {
                "start": 1759759363,
                "finish": 1759759363.155413,
                "duration": 0.15541291236877441,
                "processing": 0,
                "date_start": "2025-10-06T17:02:43+02:00",
                "date_finish": "2025-10-06T17:02:43+02:00",
                "operating_reset_at": 1759759963,
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `object`	An object containing the response data. Returns an empty array `"result":[],` if the task does not exist or the user does not have access to the task
task `object`	An object with the task description after the operation is executed
time `time`	Information about the request execution time

Error Handling

HTTP Status: 400

{
            "error": "100",
            "error_description": "Invalid value {} to match with parameter {select}. Should be value of type array. (internal error)"
        }

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
`0`	wrong task id	The value in the `taskId` parameter is of an incorrect type
`100`	CTaskItem All parameters in the constructor must have real class type (internal error)	The required parameter `taskId` was not provided
`100`	Invalid value {} to match with parameter {select}. Should be value of type array. (internal error)	The `select` parameter was provided empty or contains invalid values

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

Continue Learning

Update Task

Get Task List

Get Task by ID tasks.task.get

Method ParametersMethod Parameters

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

Continue LearningContinue Learning