Delete checklist item task.checklistitem.delete

Scope: task

Who can execute the method:

any user with editing access to the task

Creator, Performer, and Participants of the task

The method task.checklistitem.delete removes a checklist item from a task.

You can check permissions for deleting an item using the method task.checklistitem.isactionallowed.

Method Parameters

Required parameters are marked with *

Name
type

Description

TASKID*
integer

Task identifier.

The task identifier can be obtained when creating a new task or by using the getting the list of tasks method

ITEMID*
integer

Checklist item identifier.

The item identifier can be obtained when adding a new item or by using the getting the list of checklist items method

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":13,"ITEMID":475}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/task.checklistitem.delete

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"TASKID":13,"ITEMID":475,"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/task.checklistitem.delete

try
        {
            const response = await $b24.callMethod(
                'task.checklistitem.delete',
                {
                    TASKID: 13,
                    ITEMID: 475
                }
            );
            
            const result = response.getData().result;
            console.log('Deleted checklist item:', result);
            processResult(result);
        }
        catch( error )
        {
            console.error('Error:', error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'task.checklistitem.delete',
                    [
                        'TASKID' => 13,
                        'ITEMID' => 475
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error deleting checklist item: ' . $e->getMessage();
        }

BX24.callMethod(
            'task.checklistitem.delete',
            {
                TASKID: 13,
                ITEMID: 475
            },
            function(result){
                console.info(result.data());
                console.log(result);
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'task.checklistitem.delete',
            [
                'TASKID' => 13,
                'ITEMID' => 475
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

Response Handling

HTTP Status: 200

{
            "result": true,
            "time": {
                "start": 1764594534,
                "finish": 1764594535.201817,
                "duration": 1.2018170356750488,
                "processing": 0,
                "date_start": "2025-12-01T16:08:54+01:00",
                "date_finish": "2025-12-01T16:08:55+01:00",
                "operating_reset_at": 1764595135,
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `boolean`	Returns `true` if the checklist item was successfully deleted
time `time`	Information about the request execution time

Error Handling

HTTP Status: 400

{
            "error": "ERROR_CORE",
            "error_description": "TASKS_ERROR_EXCEPTION_#8; Deleting item: action not allowed; 8/TE/ACTION_FAILED_TO_BE_PROCESSED<br>"
        }

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
`ERROR_CORE`	TASKS_ERROR_EXCEPTION_#256; Param #1 (itemId) expected by method ctaskchecklistitem::delete(), but not given.; 256/TE/WRONG_ARGUMENTS	Required parameter `TASKID` or `ITEMID` not specified
`ERROR_CORE`	TASKS_ERROR_EXCEPTION_#256; Param #0 (taskId) for method ctaskchecklistitem::delete() expected to be of type "integer", but given something else.; 256/TE/WRONG_ARGUMENTS	Incorrect value type for `TASKID` or `ITEMID`
`ERROR_CORE`	TASKS_ERROR_EXCEPTION_#8; Deleting item: action not allowed; 8/TE/ACTION_FAILED_TO_BE_PROCESSED	User does not have access to the task or lacks permissions to perform the action

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 allowed to be called 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 methods must be called using the HTTPS protocol
`503`	`OVERLOAD_LIMIT` REST API is blocked due to overload	The REST API is blocked due to overload. This is a manual individual block, to remove it you need to contact Bitrix24 technical support
`403`	`ACCESS_DENIED` REST API is available only on commercial plans	The REST API is available only on commercial plans
`403`	`INVALID_CREDENTIALS` Invalid request credentials	The user whose access token or webhook was used to call the method lacks 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 account administrator has allowed access to this application only for specific users
`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 option "Temporary closure of the public part of the site". Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site

Continue Learning

Get List of Checklist Items

Move Checklist Item

Delete checklist item task.checklistitem.delete

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

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