Delegate a workflow task bizproc.task.delegate

Scope: bizproc

Who can execute the method: any user responsible for the workflow task

This method delegates a workflow task. You can only delegate your own task.

User documentation

Actions: Tasks

Method parameters

Required parameters are marked with *

Name `type`	Description
TASK_IDS* `array`	List of task identifiers. You can obtain identifiers using the bizproc.task.list method.
FROM_USER_ID* `integer`	Identifier of the user from whom the tasks will be delegated. You can obtain the user identifier using the user.get method.
TO_USER_ID* `integer`	Identifier of the user to whom the tasks will be delegated. You can obtain the user identifier using the user.get method. Who you can delegate to depends on the task settings: only subordinates, all employees, or no one.

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 '{"TASK_IDS":[1128,1129,1130],"FROM_USER_ID":15,"TO_USER_ID":37}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/bizproc.task.delegate

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"TASK_IDS":[1128,1129,1130],"FROM_USER_ID":15,"TO_USER_ID":37,"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/bizproc.task.delegate

try
        {
            const response = await $b24.callMethod(
                'bizproc.task.delegate',
                {
                    TASK_IDS: [1128, 1129, 1130],
                    FROM_USER_ID: 15,
                    TO_USER_ID: 37,
                }
            );
            
            const result = response.getData().result;
            console.log('Delegated tasks:', result);
            
            processResult(result);
        }
        catch( error )
        {
            console.error('Error:', error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'bizproc.task.delegate',
                    [
                        'TASK_IDS' => [1128, 1129, 1130],
                        'FROM_USER_ID' => 15,
                        'TO_USER_ID' => 37,
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error delegating task: ' . $e->getMessage();
        }

BX24.callMethod(
            'bizproc.task.delegate',
            {
                'TASK_IDS': [1128, 1129, 1130],
                'FROM_USER_ID': 15,
                'TO_USER_ID': 37,
            },
            function(result)
            {
                if(result.error())
                    alert("Error: " + result.error());
                else
                    console.log(result.data());
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'bizproc.task.delegate',
            [
                'TASK_IDS' => [1128, 1129, 1130],
                'FROM_USER_ID' => 15,
                'TO_USER_ID' => 37
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

Response handling

HTTP status: 200

{
            "result": true,
            "time": {
                "start": 1748526089.625516,
                "finish": 1748526089.656787,
                "duration": 0.03127098083496094,
                "processing": 0.008746147155761719,
                "date_start": "2025-05-29T16:41:29+02:00",
                "date_finish": "2025-05-29T16:41:29+02:00",
                "operating_reset_at": 1748526689,
                "operating": 0
            }
        }

Returned data

Name `type`	Description
result `boolean`	Returns `true` if the task was successfully delegated.
time `time`	Information about the request execution time.

Error handling

HTTP status: 400

{
            "error": "ERROR_INVALID_USER_ID",
            "error_description": "Invalid FROM_USER_ID"
        }

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	Error message	Description
`ERROR_TASK_VALIDATION`	Invalid TASK_IDS	Invalid task identifiers or the `TASK_IDS` parameter was not provided.
`ERROR_INVALID_USER_ID`	Invalid FROM_USER_ID	Invalid or missing user identifier from whom the delegation is made.
`ERROR_INVALID_USER_ID`	Invalid TO_USER_ID	Invalid or missing user identifier to whom the delegation is made.
`ERROR_DELEGATION_NOT_ALLOWED`	User is not responsible for the task	The user specified in the `FROM_USER_ID` parameter is not responsible for the task.
`ERROR_DELEGATION_NOT_ALLOWED`	Task delegation is only available for intranet users	The user specified in the `TO_USER_ID` parameter is not an intranet user.
`ERROR_DELEGATION_NOT_ALLOWED`	List of errors separated by `;`	The method can accept multiple tasks. If errors occur in multiple tasks, they will be returned as a list separated by `;`.

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

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Complete Workflow Task

Overview of Methods

Delegate a workflow task bizproc.task.delegate

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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