Get a List of Workflow Tasks bizproc.task.list

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Scope: bizproc

Who can execute the method: any user

The method bizproc.task.list retrieves a list of workflow tasks.

A portal administrator can request all tasks or tasks of any user. A regular user can only request their own tasks or those of their subordinates.

To request their own tasks, the USER_ID filter does not need to be specified.

In cloud Bitrix24, task information is available for one day after the workflow is completed.

Method Parameters

Required parameters are marked with *

Name `type`	Description
SELECT `array`	An array containing a list of fields to select. You can specify only the fields that are necessary. By default, it returns the fields `ENTITY`, `DOCUMENT_ID`, `ID`, `WORKFLOW_ID`, `DOCUMENT_NAME`, `NAME`, `DOCUMENT_URL`
FILTER `object`	An object for filtering the list of tasks in the format `{"field_1": "value_1", ... "field_N": "value_N"}`, where `field_N` — field of the task for filtering `value_N` — value of the field You can specify the type of filtering before the name of the filtered field: `=` — equal `!` or `!=` — not equal `<` — less than `<=` — less than or equal to `>` — greater than `>=` — greater than or equal to Without a prefix, the filter compares the value for equality. The field name can be passed in any case. If `USER_ID` is present in the filter, user subordination is checked: a manager can request a list of tasks for their subordinates an administrator can request tasks of any users without restrictions If the method is called by a non-administrator and the `USER_ID` filter is not specified, it defaults to selecting tasks of the current user
ORDER `object`	An object for sorting the list of tasks in the format `{"field_1": "value_1", ... "field_N": "value_N"}`, where `field_N` — field of the task for sorting `value_N` — sorting direction The sorting direction can take the following values: `asc` — ascending `desc` — descending You can specify multiple fields for sorting, for example, `{NAME: 'ASC', ID: 'DESC'}`
START `integer`	This parameter is used for managing pagination. The page size of results is always static — 50 records. To select the second page of results, you need to pass the value `50`. To select the third page of results — the value `100`, and so on. The formula for calculating the `start` parameter value: `start = (N - 1) * 50`, where `N` — the desired page number

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

Python

PHP

BX24.js

PHP CRest

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"select":["ID","WORKFLOW_ID","DOCUMENT_NAME","DESCRIPTION","NAME","MODIFIED","WORKFLOW_STARTED","WORKFLOW_STARTED_BY","OVERDUE_DATE","WORKFLOW_TEMPLATE_ID","WORKFLOW_TEMPLATE_NAME","WORKFLOW_STATE","STATUS","USER_ID","USER_STATUS","MODULE_ID","ENTITY","DOCUMENT_ID","ACTIVITY","ACTIVITY_NAME","DOCUMENT_URL","PARAMETERS"],"order":{"ID":"DESC"},"filter":{"USER_ID":1,"STATUS":0,"ACTIVITY":"RequestInformationOptionalActivity"}}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/bizproc.task.list

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"select":["ID","WORKFLOW_ID","DOCUMENT_NAME","DESCRIPTION","NAME","MODIFIED","WORKFLOW_STARTED","WORKFLOW_STARTED_BY","OVERDUE_DATE","WORKFLOW_TEMPLATE_ID","WORKFLOW_TEMPLATE_NAME","WORKFLOW_STATE","STATUS","USER_ID","USER_STATUS","MODULE_ID","ENTITY","DOCUMENT_ID","ACTIVITY","ACTIVITY_NAME","DOCUMENT_URL","PARAMETERS"],"order":{"ID":"DESC"},"filter":{"USER_ID":1,"STATUS":0,"ACTIVITY":"RequestInformationOptionalActivity"},"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/bizproc.task.list

// callListMethod: Retrieves all data at once. Use only for small selections (< 1000 items) due to high memory load.
        
        const parameters = {
            select: [
                'ID',
                'WORKFLOW_ID',
                'DOCUMENT_NAME',
                'DESCRIPTION',
                'NAME',
                'MODIFIED',
                'WORKFLOW_STARTED',
                'WORKFLOW_STARTED_BY',
                'OVERDUE_DATE',
                'WORKFLOW_TEMPLATE_ID',
                'WORKFLOW_TEMPLATE_NAME',
                'WORKFLOW_STATE',
                'STATUS',
                'USER_ID',
                'USER_STATUS',
                'MODULE_ID',
                'ENTITY',
                'DOCUMENT_ID',
                'ACTIVITY',
                'ACTIVITY_NAME',
                'DOCUMENT_URL',
                'PARAMETERS'
            ],
            order: {
                ID: 'DESC'
            },
            filter: {
                'USER_ID': 1,
                'STATUS': 0,
                'ACTIVITY': 'RequestInformationOptionalActivity'
            }
        };
        
        try {
            const response = await $b24.callListMethod('bizproc.task.list', parameters);
            const items = response.getData() || [];
            for (const entity of items) { console.log('Entity:', entity); }
        } catch (error) {
            console.error('Request failed', error);
        }
        
        // fetchListMethod: Retrieves data in parts using an iterator. Use for large volumes of data for efficient memory consumption.
        
        const parameters = {
            select: [
                'ID',
                'WORKFLOW_ID',
                'DOCUMENT_NAME',
                'DESCRIPTION',
                'NAME',
                'MODIFIED',
                'WORKFLOW_STARTED',
                'WORKFLOW_STARTED_BY',
                'OVERDUE_DATE',
                'WORKFLOW_TEMPLATE_ID',
                'WORKFLOW_TEMPLATE_NAME',
                'WORKFLOW_STATE',
                'STATUS',
                'USER_ID',
                'USER_STATUS',
                'MODULE_ID',
                'ENTITY',
                'DOCUMENT_ID',
                'ACTIVITY',
                'ACTIVITY_NAME',
                'DOCUMENT_URL',
                'PARAMETERS'
            ],
            order: {
                ID: 'DESC'
            },
            filter: {
                'USER_ID': 1,
                'STATUS': 0,
                'ACTIVITY': 'RequestInformationOptionalActivity'
            }
        };
        
        try {
            const generator = $b24.fetchListMethod('bizproc.task.list', parameters, 'ID');
            for await (const page of generator) {
                for (const entity of page) { console.log('Entity:', entity); }
            }
        } catch (error) {
            console.error('Request failed', error);
        }
        
        // callMethod: Manual control of pagination through the start parameter. Use for precise control over request batches. Less efficient for large data than fetchListMethod.
        
        const parameters = {
            select: [
                'ID',
                'WORKFLOW_ID',
                'DOCUMENT_NAME',
                'DESCRIPTION',
                'NAME',
                'MODIFIED',
                'WORKFLOW_STARTED',
                'WORKFLOW_STARTED_BY',
                'OVERDUE_DATE',
                'WORKFLOW_TEMPLATE_ID',
                'WORKFLOW_TEMPLATE_NAME',
                'WORKFLOW_STATE',
                'STATUS',
                'USER_ID',
                'USER_STATUS',
                'MODULE_ID',
                'ENTITY',
                'DOCUMENT_ID',
                'ACTIVITY',
                'ACTIVITY_NAME',
                'DOCUMENT_URL',
                'PARAMETERS'
            ],
            order: {
                ID: 'DESC'
            },
            filter: {
                'USER_ID': 1,
                'STATUS': 0,
                'ACTIVITY': 'RequestInformationOptionalActivity'
            }
        };
        
        try {
            const response = await $b24.callMethod('bizproc.task.list', parameters, 0);
            const result = response.getData().result || [];
            for (const entity of result) { console.log('Entity:', entity); }
        } catch (error) {
            console.error('Request failed', error);
        }

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.bizproc.task.list(
                select=[
                    "ID",
                    "WORKFLOW_ID",
                    "DOCUMENT_NAME",
                    "DESCRIPTION",
                    "NAME",
                    "MODIFIED",
                    "WORKFLOW_STARTED",
                    "WORKFLOW_STARTED_BY",
                    "OVERDUE_DATE",
                    "WORKFLOW_TEMPLATE_ID",
                    "WORKFLOW_TEMPLATE_NAME",
                    "WORKFLOW_STATE",
                    "STATUS",
                    "USER_ID",
                    "USER_STATUS",
                    "MODULE_ID",
                    "ENTITY",
                    "DOCUMENT_ID",
                    "ACTIVITY",
                    "ACTIVITY_NAME",
                    "DOCUMENT_URL",
                    "PARAMETERS",
                ],
                order={
                    "ID": "DESC",
                },
                filter={
                    "USER_ID": 1,
                    "STATUS": 0,
                    "ACTIVITY": "RequestInformationOptionalActivity",
                },
            ).response
            result = bitrix_response.result
            print(result)
        except BitrixAPIError as error:
            print(
                "Bitrix API error",
                f"error: {error.error}",
                f"error_description: {error.error_description}",
                sep="\n",
            )
        except BitrixSDKException as error:
            print(f"Bitrix SDK error: {error.message}")
        except Exception as error:
            print(f"Unexpected error: {error}")

Example as_list

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.bizproc.task.list(
                select=[
                    "ID",
                    "WORKFLOW_ID",
                    "DOCUMENT_NAME",
                    "DESCRIPTION",
                    "NAME",
                    "MODIFIED",
                    "WORKFLOW_STARTED",
                    "WORKFLOW_STARTED_BY",
                    "OVERDUE_DATE",
                    "WORKFLOW_TEMPLATE_ID",
                    "WORKFLOW_TEMPLATE_NAME",
                    "WORKFLOW_STATE",
                    "STATUS",
                    "USER_ID",
                    "USER_STATUS",
                    "MODULE_ID",
                    "ENTITY",
                    "DOCUMENT_ID",
                    "ACTIVITY",
                    "ACTIVITY_NAME",
                    "DOCUMENT_URL",
                    "PARAMETERS",
                ],
                order={
                    "ID": "DESC",
                },
                filter={
                    "USER_ID": 1,
                    "STATUS": 0,
                    "ACTIVITY": "RequestInformationOptionalActivity",
                },
            ).as_list().response
            result = bitrix_response.result
            for item in result:
                print(item)
        except BitrixAPIError as error:
            print(
                "Bitrix API error",
                f"error: {error.error}",
                f"error_description: {error.error_description}",
                sep="\n",
            )
        except BitrixSDKException as error:
            print(f"Bitrix SDK error: {error.message}")
        except Exception as error:
            print(f"Unexpected error: {error}")

Example as_list_fast

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.bizproc.task.list(
                select=[
                    "ID",
                    "WORKFLOW_ID",
                    "DOCUMENT_NAME",
                    "DESCRIPTION",
                    "NAME",
                    "MODIFIED",
                    "WORKFLOW_STARTED",
                    "WORKFLOW_STARTED_BY",
                    "OVERDUE_DATE",
                    "WORKFLOW_TEMPLATE_ID",
                    "WORKFLOW_TEMPLATE_NAME",
                    "WORKFLOW_STATE",
                    "STATUS",
                    "USER_ID",
                    "USER_STATUS",
                    "MODULE_ID",
                    "ENTITY",
                    "DOCUMENT_ID",
                    "ACTIVITY",
                    "ACTIVITY_NAME",
                    "DOCUMENT_URL",
                    "PARAMETERS",
                ],
                order={
                    "ID": "DESC",
                },
                filter={
                    "USER_ID": 1,
                    "STATUS": 0,
                    "ACTIVITY": "RequestInformationOptionalActivity",
                },
            ).as_list_fast(descending=True).response
            result = bitrix_response.result
            for item in result:
                print(item)
        except BitrixAPIError as error:
            print(
                "Bitrix API error",
                f"error: {error.error}",
                f"error_description: {error.error_description}",
                sep="\n",
            )
        except BitrixSDKException as error:
            print(f"Bitrix SDK error: {error.message}")
        except Exception as error:
            print(f"Unexpected error: {error}")

try {
            $response = $b24Service
                ->core
                ->call(
                    'bizproc.task.list',
                    [
                        'select' => [
                            'ID',
                            'WORKFLOW_ID',
                            'DOCUMENT_NAME',
                            'DESCRIPTION',
                            'NAME',
                            'MODIFIED',
                            'WORKFLOW_STARTED',
                            'WORKFLOW_STARTED_BY',
                            'OVERDUE_DATE',
                            'WORKFLOW_TEMPLATE_ID',
                            'WORKFLOW_TEMPLATE_NAME',
                            'WORKFLOW_STATE',
                            'STATUS',
                            'USER_ID',
                            'USER_STATUS',
                            'MODULE_ID',
                            'ENTITY',
                            'DOCUMENT_ID',
                            'ACTIVITY',
                            'ACTIVITY_NAME',
                            'DOCUMENT_URL',
                            'PARAMETERS'
                        ],
                        'order' => [
                            'ID' => 'DESC'
                        ],
                        'filter' => [
                            'USER_ID'  => 1,
                            'STATUS'   => 0,
                            'ACTIVITY' => 'RequestInformationOptionalActivity'
                        ]
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            if ($result->error()) {
                echo 'Error: ' . $result->error();
            } else {
                echo 'Success: ' . print_r($result->data(), true);
            }
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error: ' . $e->getMessage();
        }

BX24.callMethod(
            'bizproc.task.list',
            {
                select: [
                    'ID',
                    'WORKFLOW_ID',
                    'DOCUMENT_NAME',
                    'DESCRIPTION',
                    'NAME',
                    'MODIFIED',
                    'WORKFLOW_STARTED',
                    'WORKFLOW_STARTED_BY',
                    'OVERDUE_DATE',
                    'WORKFLOW_TEMPLATE_ID',
                    'WORKFLOW_TEMPLATE_NAME',
                    'WORKFLOW_STATE',
                    'STATUS',
                    'USER_ID',
                    'USER_STATUS',
                    'MODULE_ID',
                    'ENTITY',
                    'DOCUMENT_ID',
                    'ACTIVITY',
                    'ACTIVITY_NAME',
                    'DOCUMENT_URL',
                    'PARAMETERS'
                ],
                order: {
                    ID: 'DESC'
                },
                filter: {
                    'USER_ID': 1,
                    'STATUS': 0,
                    'ACTIVITY': 'RequestInformationOptionalActivity'
                }
            },
            function(result)
            {
                if(result.error())
                    alert("Error: " + result.error());
                else
                    console.log(result.data());
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'bizproc.task.list',
            [
                'select' => [
                    'ID',
                    'WORKFLOW_ID',
                    'DOCUMENT_NAME',
                    'DESCRIPTION',
                    'NAME',
                    'MODIFIED',
                    'WORKFLOW_STARTED',
                    'WORKFLOW_STARTED_BY',
                    'OVERDUE_DATE',
                    'WORKFLOW_TEMPLATE_ID',
                    'WORKFLOW_TEMPLATE_NAME',
                    'WORKFLOW_STATE',
                    'STATUS',
                    'USER_ID',
                    'USER_STATUS',
                    'MODULE_ID',
                    'ENTITY',
                    'DOCUMENT_ID',
                    'ACTIVITY',
                    'ACTIVITY_NAME',
                    'DOCUMENT_URL',
                    'PARAMETERS'
                ],
                'order' => [
                    'ID' => 'DESC'
                ],
                'filter' => [
                    'USER_ID' => 1,
                    'STATUS' => 0,
                    'ACTIVITY' => 'RequestInformationOptionalActivity'
                ]
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "bizproc.task.list", b24.Params{
        	"SELECT": []string{"ID", "WORKFLOW_ID", "DOCUMENT_NAME", "DESCRIPTION", "NAME", "MODIFIED", "WORKFLOW_STARTED", "WORKFLOW_STARTED_BY", "OVERDUE_DATE", "WORKFLOW_TEMPLATE_ID", "WORKFLOW_TEMPLATE_NAME", "WORKFLOW_STATE", "STATUS", "USER_ID", "USER_STATUS", "MODULE_ID", "ENTITY", "DOCUMENT_ID", "ACTIVITY", "ACTIVITY_NAME", "DOCUMENT_URL", "PARAMETERS"},
        	"ORDER": b24.Params{
        		"ID": "DESC",
        	},
        	"FILTER": b24.Params{
        		"USER_ID":  1,
        		"STATUS":   0,
        		"ACTIVITY": "RequestInformationOptionalActivity",
        	},
        }, b24.WithIdempotent())
        if err != nil {
        	return fmt.Errorf("bizproc.task.list: %w", err)
        }
        
        // The response arrives as json.RawMessage — unmarshal it
        // into a struct matching the response shape shown below on this page.
        fmt.Printf("%s\n", res.Result)

Response Handling

HTTP Status: 200

{
            "result": [
                {
                    "ENTITY": "BizprocDocument",
                    "DOCUMENT_ID": "2249",
                    "ID": "1477",
                    "WORKFLOW_ID": "67a2ffdb2c57a3.35276854",
                    "DOCUMENT_NAME": "Partner Conference",
                    "DESCRIPTION": "",
                    "NAME": "Add Contractor Information",
                    "MODIFIED": "2025-02-05T09:06:19+02:00",
                    "WORKFLOW_STARTED": "2025-02-05T09:06:19+02:00",
                    "WORKFLOW_STARTED_BY": "1",
                    "OVERDUE_DATE": null,
                    "WORKFLOW_TEMPLATE_ID": "565",
                    "WORKFLOW_TEMPLATE_NAME": "Event Organization",
                    "WORKFLOW_STATE": "Waiting for Additional Information",
                    "STATUS": "0",
                    "USER_ID": "1",
                    "USER_STATUS": "0",
                    "MODULE_ID": "lists",
                    "ACTIVITY": "RequestInformationActivity",
                    "ACTIVITY_NAME": "A3651_68033_56029_16413",
                    "PARAMETERS": {
                        "CommentLabel": "Comment",
                        "CommentRequired": "Y",
                        "ShowComment": "Y",
                        "StatusOkLabel": "Save Result",
                        "Fields": [
                            {
                                "Id": "contractor",
                                "Type": "E:ECrm",
                                "Name": "Contractor",
                                "Description": "Who performs the work",
                                "Multiple": false,
                                "Required": true,
                                "Options": {
                                    "LEAD": "N",
                                    "CONTACT": "Y",
                                    "COMPANY": "Y",
                                    "DEAL": "N",
                                    "SMART_INVOICE": "N",
                                    "DYNAMIC_136": "N",
                                    "DYNAMIC_1038": "N"
                                },
                                "Settings": null,
                                "Default": [
                                    "C_607"
                                ]
                            },
                            {
                                "Id": "phone_number",
                                "Type": "string",
                                "Name": "Phone Number",
                                "Description": "",
                                "Multiple": false,
                                "Required": true,
                                "Options": null,
                                "Settings": null,
                                "Default": ""
                            }
                        ]
                    },
                    "DOCUMENT_URL": "/bizproc/processes/?livefeed=y&list_id=171&element_id=2249"
                },
                {
                    "ENTITY": "BizprocDocument",
                    "DOCUMENT_ID": "2237",
                    "ID": "1471",
                    "WORKFLOW_ID": "67a2fda6732f98.84769464",
                    "DOCUMENT_NAME": "Partner Conference",
                    "DESCRIPTION": "",
                    "NAME": "Approve Contractor",
                    "MODIFIED": "2025-02-05T08:58:14+03:00",
                    "WORKFLOW_STARTED": "2025-02-05T08:58:14+03:00",
                    "WORKFLOW_STARTED_BY": "1",
                    "OVERDUE_DATE": null,
                    "WORKFLOW_TEMPLATE_ID": "565",
                    "WORKFLOW_TEMPLATE_NAME": "Event Organization",
                    "WORKFLOW_STATE": "Waiting for Approval",
                    "STATUS": "0",
                    "USER_ID": "1",
                    "USER_STATUS": "0",
                    "MODULE_ID": "lists",
                    "ACTIVITY": "ApproveActivity",
                    "ACTIVITY_NAME": "A3651_68033_56029_16414",
                    "PARAMETERS": {
                        "CommentLabel": "Comment",
                        "CommentRequired": "N",
                        "ShowComment": "Y",
                        "StatusYesLabel": "Approve",
                        "StatusNoLabel": "Reject"
                    },
                    "DOCUMENT_URL": "/bizproc/processes/?livefeed=y&list_id=171&element_id=2237"
                }
            ],
            "total": 2,
            "time": {
                "start": 1738735796.4730229,
                "finish": 1738735796.510215,
                "duration": 0.037192106246948242,
                "processing": 0.0080459117889404297,
                "date_start": "2025-02-05T09:09:56+02:00",
                "date_finish": "2025-02-05T09:09:56+02:00",
                "operating_reset_at": 1738736396,
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `array`	The root element of the response. Contains an array of objects with information about workflow tasks. Each object contains fields of the task specified in the `SELECT` parameter
total `integer`	The total number of records found
time `time`	Information about the execution time of the request

Task Fields

Name `type`	Description
ID `integer`	Task identifier
WORKFLOW_ID `string`	Workflow identifier
DOCUMENT_NAME `string`	Document name
DESCRIPTION `string`	Task description
NAME `string`	Task name
MODIFIED `datetime`	Modification date
WORKFLOW_STARTED `datetime`	Workflow start date
WORKFLOW_STARTED_BY `user`	Who started the workflow
OVERDUE_DATE `datetime`	Deadline
WORKFLOW_TEMPLATE_ID `integer`	Workflow template identifier
WORKFLOW_TEMPLATE_NAME `string`	Workflow template name
WORKFLOW_STATE `string`	Workflow status
STATUS `integer`	Task status. Possible values: `0` — in progress `1` — approved `2` — rejected `3` — completed `4` — overdue
USER_ID `user`	User identifier
USER_STATUS `integer`	User response. Possible values: `0` — awaiting response `1` — approved `2` — rejected `3` — completed
MODULE_ID `string`	Module identifier by document
ENTITY `string`	Symbolic identifier of the object by document
DOCUMENT_ID `integer`	Document identifier
ACTIVITY `string`	Task type identifier. Possible values: `ApproveActivity` — document approval `ReviewActivity` — document review `RequestInformationActivity` — request for additional information `RequestInformationOptionalActivity` — request for additional information (with rejection)
ACTIVITY_NAME `string`	Action identifier in the template
PARAMETERS `object`	An object describing the task parameters
DOCUMENT_URL `string`	Link to the document

PARAMETERS Object

Name `type`	Description
CommentLabel `string`	Name of the Comment field
CommentRequired `string`	Comment requirement. Possible values: `N` — no `Y` — yes `YA` — yes, upon approval `YR` — yes, upon rejection
ShowComment `boolean`	Show comment. Possible values: `N` — no `Y` — yes
StatusOkLabel `string`	Text for the Acknowledged button
StatusYesLabel `string`	Text for the Approve button
StatusNoLabel `string`	Text for the Reject button
Fields `array`	An array of objects. Each object contains a description of the field in the task

Fields Object

Name `type`	Description
Id `string`	Symbolic identifier of the task parameter
Type `string`	Parameter type. Basic values: `bool` — yes or no `date` — date `datetime` — date and time `double` — number `int` — integer `select` — list `string` — string `text` — text `user` — user Other types depend on the document with which the workflow operates
Name `string` \| `object`	Name of the parameter
Description `string` \| `object`	Description of the parameter
Multiple `boolean`	Parameter multiplicity. Possible values: `true` — yes `false` — no
Required `boolean`	Parameter requirement. Possible values: `true` — yes `false` — no
Options `object`	Field settings. Values depend on the parameter type. Examples: for the List type `select`, these are the options of the list `"Options": { "1": "First Option", "2": "Second Option", "3": "Third Option" },` for the CRM binding type `'E:ECrm'`, these are the available object types `"Options": { "LEAD": "N", "CONTACT": "Y", "COMPANY": "Y", "DEAL": "N", "SMART_INVOICE": "N", "DYNAMIC_136": "N", "DYNAMIC_1038": "N" },`
Settings `object`	Additional field settings
Default `any`	Default value of the parameter

Error Handling

HTTP Status: 400

{
            "error": "ACCESS_DENIED",
            "error_description": "Access denied!"
        }

Name `type`	Description
error `string`	String error code. It consists of digits, Latin letters, and underscores. It may arrive empty — in that case only `error_description` shows the reason
error_description `string`	Error message for the developer. Do not show it to the end user without processing

Possible Error Codes

Code	Error Message	Description
`ACCESS_DENIED`	Access denied!	The method was called by a non-administrator or you cannot view the tasks of the specified employee
`ERROR_SELECT_VALIDATION_FAILURE`	Invalid data in SELECT parameter	Invalid data was passed in the `SELECT` parameter

Statuses and System Error Codes

HTTP Status: 4xx, 5xx

The errors described below are returned by the REST API itself, not by the logic of a specific method. They can arrive in response to any method.

Status	Code Error Message	Description
`500`	`INTERNAL_SERVER_ERROR` Internal server error	An internal server error has occurred. Retry the call, and if the error persists, contact the server administrator or Bitrix24 technical support
`500`	`ERROR_UNEXPECTED_ANSWER` Server returned an unexpected response	The server returned an unexpected response. Retry the call, and if the error persists, contact the server administrator or Bitrix24 technical support
`503`	`QUERY_LIMIT_EXCEEDED` Too many requests	The request intensity limit has been exceeded
`429`	`OPERATION_TIME_LIMIT` Method is blocked due to operation time limit	The method is blocked because the request resource intensity limit has been exceeded. The block is lifted automatically once the accumulated execution time of the method no longer exceeds the limit
`401`	`NO_AUTH_FOUND` Wrong authorization data	The request contains no authorization data: neither an access token nor a webhook code was passed
`401`	`INVALID_REQUEST` Https required	Methods are called over the HTTPS protocol only
`401`	`OVERLOAD_LIMIT` REST API is blocked due to overload	The REST API is blocked due to overload. This is a manual individual block. To have it lifted, contact Bitrix24 technical support
`401`	`ACCESS_DENIED` REST is available only on commercial plans	REST API access is not active for this account. In Bitrix24 Cloud, check the current plan or trial status: Vibe+ plans include REST API access, while Essentials plans do not. A webhook receives a different error message — `REST is available only by subscription`
`401`	`INVALID_CREDENTIALS` Invalid request credentials	No active webhook with the specified user identifier and secret code was found
`404`	`ERROR_METHOD_NOT_FOUND` Method not found!	No method with this name was found. The name is misspelled, the method does not exist in the REST API, or it is unavailable without the required scope
`401`	`insufficient_scope` The request requires higher privileges than provided by the webhook token	The request requires broader permissions than the token has: for a webhook these are the permissions granted to it, for an application it is the scope. For an application, the error message ends with `provided by the access token`
`401`	`expired_token` The access token provided has expired	The access token has expired
`401`	`user_access_error` The user does not have access to the application	The application is installed, but the Bitrix24 administrator has granted access to it only to specific users
`403`	`PORTAL_DELETED` Portal was deleted	The public part of the site is closed. To open it 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

Complete Workflow Task

Get a List of Workflow Tasks bizproc.task.list

Method ParametersMethod Parameters

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

Task FieldsTask Fields

PARAMETERS ObjectPARAMETERS Object

Fields ObjectFields Object

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

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