Create a Custom Field for Deals crm.deal.userfield.add

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Scope: crm

Who can execute the method: administrator CRM

The method crm.deal.userfield.add creates a new custom field for deals.

Method Parameters

Required parameters are marked with *

Name
type

Description

fields*
object

Object format:

{
            field_1: value_1,
            field_2: value_2,
            ...,
            field_n: value_n,
        }

field_n — field name
value_n — field value

The list of available fields is described below.

An incorrect field in fields will be ignored

Parameter fields

Required parameters are marked with *

Name `type`	Description
USER_TYPE_ID* `string`	Data type of the custom field. Possible values: `string` — string `integer` — integer `double` — number `boolean` — yes/no `datetime` — date/time `date` — date `money` — money `url` — link `address` — address `enumeration` — list `file` — file `employee` — link to employee `crm_status` — link to CRM directory `iblock_section` — link to information block sections `iblock_element` — link to information block elements `crm` — link to CRM elements custom field types
FIELD_NAME* `string`	Field code. Unique. The system limit for the field code is 20 characters. The custom field name always has the prefix `UF_CRM_`, meaning the actual name length is 13 characters. Allowed characters: `A-Z`, `0-9`, and `_`
LABEL `string`	Default name of the custom field. The provided value will be set in the following fields: `LIST_FILTER_LABEL`, `LIST_COLUMN_LABEL`, `EDIT_FORM_LABEL`, `ERROR_MESSAGE`, `HELP_MESSAGE`, if no value is provided for them
XML_ID `string`	External code
LIST_FILTER_LABEL `string`\|`lang_map`	Filter label in the list. When a string is provided, it will be set for all language identifiers. When a `lang_map` type value is provided, the value from `LABEL` will be set for all languages that were not provided. By default, the value passed in `LABEL` is set for all language identifiers
LIST_COLUMN_LABEL `string`\|`lang_map`	Header in the list. When a string is provided, it will be set for all language identifiers. When a `lang_map` type value is provided, the value from `LABEL` will be set for all languages that were not provided. By default, the value passed in `LABEL` is set for all language identifiers
EDIT_FORM_LABEL `string`\|`lang_map`	Label in the edit form. When a string is provided, it will be set for all language identifiers. When a `lang_map` type value is provided, the value from `LABEL` will be set for all languages that were not provided. By default, the value passed in `LABEL` is set for all language identifiers
ERROR_MESSAGE `string`\|`lang_map`	Error message
HELP_MESSAGE `string`\|`lang_map`	Help
MULTIPLE `boolean`	Is the field multiple. Possible values: `Y` — yes `N` — no Fields of type `boolean` cannot be multiple. By default, `N`
MANDATORY `boolean`	Is the field mandatory. Possible values: `Y` — yes `N` — no By default, `N`
SHOW_FILTER `boolean`	Show the field in the filter. Possible values: `Y` — yes `N` — no By default, `N`
SETTINGS `object`	Additional field parameters. Each `USER_TYPE_ID` field type has its own set of available settings, described below
LIST `uf_enum_element[]`	List of possible values for the custom field of type `enumeration`, described below By default `[]`
SORT `integer`	Sort index. Must be greater than zero. By default `100`
SHOW_IN_LIST `boolean`	Show the custom field in the list. This parameter does not affect anything within `crm`. Possible values: `Y` — yes `N` — no By default `N`
EDIT_IN_LIST `boolean`	Allow user editing. Possible values: `Y` — yes `N` — no By default `Y`. The value `N` is not supported by all field types within `crm`
IS_SEARCHABLE `boolean`	Are the field values included in the search. This parameter does not affect anything within `crm`. Possible values: `Y` — yes `N` — no By default `N`

Parameter SETTINGS

Each type of custom fields has its own set of additional settings. This method only supports those described below.

string

integer

double

boolean

date|datetime

enumeration

iblock_section|iblock_element

crm_status

crm

Name
type

Description

DEFAULT_VALUE
string

Default value.

Default ''

ROWS
integer

Number of lines in the input field. Must be greater than 0.

Default 1

Name `type`	Description
DEFAULT_VALUE `integer`	Default value

Name
type

Description

DEFAULT_VALUE
double

Default value

PRECISION
integer

Number precision. Must be greater than or equal to 0.

Default 2

Name
type

Description

DEFAULT_VALUE
integer

Default value, where 1 is yes, 0 is no.

Possible values:

>= 1 -> 1
<= 0 -> 0

Default 0

DISPLAY
string

Appearance. Possible values:

CHECKBOX — checkbox
RADIO — radio buttons
DROPDOWN — dropdown list

Default CHECKBOX

Name
type

Description

DEFAULT_VALUE
object

Default value.
Object format:

{
            VALUE: datetime|date,
            TYPE: 'NONE'|'NOW'|'FIXED',
        }

where:

VALUE — default value of type datetime or date
TYPE — default value type:
- NONE — do not set a default value
- NOW — use current time/date
- FIXED — use time/date from VALUE

Default value:

{
            VALUE: '',
            TYPE: 'NONE',
        }

Name
type

Description

DISPLAY
string

Appearance. Possible values:

LIST — list
UI — editable list
CHECKBOX — checkboxes
DIALOG — entity selection dialog

Default LIST

LIST_HEIGHT

List height. Must be greater than 0.

Available only when DISPLAY = LIST or DISPLAY = UI.

Default 1

Name `type`	Description
IBLOCK_TYPE_ID `string`	Infoblock type identifier. Default `''`
IBLOCK_ID `string`	Information block identifier. Default `0`
DEFAULT_VALUE `string`	Default value. Default `''`
DISPLAY `string`	Appearance. Possible values: `DIALOG` — dialog `UI` — editable list `LIST` — list `CHECKBOX` — checkboxes Default `LIST`
LIST_HEIGHT `integer`	List height. Must be greater than 0. Default `1`
ACTIVE_FILTER `boolean`	Whether to show elements with the activity flag enabled. Possible values: `Y` — yes `N` — no Default `N`

Name
type

Description

ENTITY_TYPE
string

Directory type identifier.

Use crm.status.entity.types to find possible values.

Default ''

If none of the following options are provided, the link to leads will be enabled by default LEAD = Y.

Name `type`	Description
LEAD `boolean`	Whether binding to Leads is enabled. Possible values: `Y` — yes `N` — no Default `N`
CONTACT `boolean`	Whether binding to Contacts is enabled. Possible values: `Y` — yes `N` — no Default `N`
COMPANY `boolean`	Whether binding to Companies is enabled. Possible values: `Y` — yes `N` — no Default `N`
DEAL `boolean`	Whether binding to Deals is enabled. Possible values: `Y` — yes `N` — no Default `N`

Parameter LIST

Name `type`	Description
VALUE `string`	Value of the list item. List items with an empty or missing `VALUE` will be ignored
SORT `integer`	Sort index. Must be greater than or equal to 0. By default `0`
DEF `boolean`	Is the list item the default value. Possible values: `Y` — yes `N` — no For a multiple field, multiple `DEF = Y` are allowed. For a non-multiple field, the first provided list item with `DEF = Y` will be considered default. By default `N`
XML_ID `string`	External code of the value. Must be unique within the list items of the custom field

Code Examples

How to Use Examples in Documentation

Example of Creating a Custom Field of Type String

cURL (Webhook)

cURL (OAuth)

PHP

Python

PHP (B24PhpSdk)

Python

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"fields":{"LABEL":"Field 'Hello, World!'","USER_TYPE_ID":"string","FIELD_NAME":"HELLO_WORLD","MULTIPLE":"Y","MANDATORY":"Y","SHOW_FILTER":"Y","SETTINGS":{"DEFAULT_VALUE":"Hello, World! Default value","ROWS":3},"SORT":1000,"EDIT_IN_LIST":"Y","LIST_FILTER_LABEL":"Hello, World! Filter","LIST_COLUMN_LABEL":{"en":"Hello, World! Column","de":"Hallo, Welt! Spalte"},"EDIT_FORM_LABEL":{"en":"Hello, World! Edit","de":"Hallo, Welt! Bearbeiten"},"ERROR_MESSAGE":{"en":"Hello, World! Error","de":"Hallo, Welt! Fehler"},"HELP_MESSAGE":{"en":"Hello, World! Help","de":"Hallo, Welt! Hilfe"}}}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/crm.deal.userfield.add

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"fields":{"LABEL":"Field 'Hello, World!'","USER_TYPE_ID":"string","FIELD_NAME":"HELLO_WORLD","MULTIPLE":"Y","MANDATORY":"Y","SHOW_FILTER":"Y","SETTINGS":{"DEFAULT_VALUE":"Hello, World! Default value","ROWS":3},"SORT":1000,"EDIT_IN_LIST":"Y","LIST_FILTER_LABEL":"Hello, World! Filter","LIST_COLUMN_LABEL":{"en":"Hello, World! Column","de":"Hallo, Welt! Spalte"},"EDIT_FORM_LABEL":{"en":"Hello, World! Edit","de":"Hallo, Welt! Bearbeiten"},"ERROR_MESSAGE":{"en":"Hello, World! Error","de":"Hallo, Welt! Fehler"},"HELP_MESSAGE":{"en":"Hello, World! Help","de":"Hallo, Welt! Hilfe"}},"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/crm.deal.userfield.add

BX24.callMethod(
            'crm.deal.userfield.add',
            {
                fields: {
                    LABEL: "Field 'Hello, world!'",
                    USER_TYPE_ID: "string",
                    FIELD_NAME: "HELLO_WORLD",
                    MULTIPLE: "Y",
                    MANDATORY: "Y",
                    SHOW_FILTER: "Y",
                    SETTINGS: {
                        DEFAULT_VALUE: "Hello, world! Default value",
                        ROWS: 3,
                    },
                    SORT: 1000,
                    EDIT_IN_LIST: "Y",
                    LIST_FILTER_LABEL: "Hello, world! Filter",
                    LIST_COLUMN_LABEL: {
                        "en": "Hello, World! Column",
                        "de": "Hallo, Welt! Spalte"
                    },
                    EDIT_FORM_LABEL: {
                        "en": "Hello, World! Edit",
                        "de": "Hallo, Welt! Bearbeiten"
                    },
                    ERROR_MESSAGE: {
                        "en": "Hello, World! Error",
                        "de": "Hallo, Welt! Fehler"
                    },
                    HELP_MESSAGE: {
                        "en": "Hello, World! Help",
                        "de": "Hallo, Welt! Hilfe"
                    },
                },
            },
            (result) => {
                result.error()
                    ? console.error(result.error())
                    : console.info(result.data())
                ;
            },
        );

require_once('crest.php');
        
        $result = CRest::call(
            'crm.deal.userfield.add',
            [
                'fields' => [
                    'LABEL' => "Field 'Hello, world!'",
                    'USER_TYPE_ID' => "string",
                    'FIELD_NAME' => "HELLO_WORLD",
                    'MULTIPLE' => "Y",
                    'MANDATORY' => "Y",
                    'SHOW_FILTER' => "Y",
                    'SETTINGS' => [
                        'DEFAULT_VALUE' => "Hello, world! Default value",
                        'ROWS' => 3,
                    ],
                    'SORT' => 1000,
                    'EDIT_IN_LIST' => "Y",
                    'LIST_FILTER_LABEL' => "Hello, world! Filter",
                    'LIST_COLUMN_LABEL' => [
                        'en' => "Hello, World! Column",
                        'de' => "Hallo, Welt! Spalte"
                    ],
                    'EDIT_FORM_LABEL' => [
                        'en' => "Hello, World! Edit",
                        'de' => "Hallo, Welt! Bearbeiten"
                    ],
                    'ERROR_MESSAGE' => [
                        'en' => "Hello, World! Error",
                        'de' => "Hallo, Welt! Fehler"
                    ],
                    'HELP_MESSAGE' => [
                        'en' => "Hello, World! Help",
                        'de' => "Hallo, Welt! Hilfe"
                    ],
                ]
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

from b24pysdk.client import BaseClient
        from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        client: BaseClient
        
        try:
            bitrix_response = client.crm.deal.userfield.add(
                fields={
                    "LABEL": "Field 'Hello, world!'",
                    "USER_TYPE_ID": "string",
                    "FIELD_NAME": "HELLO_WORLD",
                    "MULTIPLE": "Y",
                    "MANDATORY": "Y",
                    "SHOW_FILTER": "Y",
                    "SETTINGS": {
                        "DEFAULT_VALUE": "Hello, world! Default value",
                        "ROWS": 3,
                    },
                    "SORT": 1000,
                    "EDIT_IN_LIST": "Y",
                    "LIST_FILTER_LABEL": "Hello, world! Filter",
                    "LIST_COLUMN_LABEL": {
                        "en": "Hello, World! Column",
                        "de": "Hallo, Welt! Spalte",
                    },
                    "EDIT_FORM_LABEL": {
                        "en": "Hello, World! Edit",
                        "de": "Hallo, Welt! Bearbeiten",
                    },
                    "ERROR_MESSAGE": {
                        "en": "Hello, World! Error",
                        "de": "Hallo, Welt! Fehler",
                    },
                    "HELP_MESSAGE": {
                        "en": "Hello, World! Help",
                        "de": "Hallo, Welt! Hilfe",
                    },
                },
            ).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}")

try {
            $userfieldItemFields = [
                'FIELD_NAME' => 'Test Field',
                'USER_TYPE_ID' => 'string',
                'XML_ID' => 'test_field_1',
                'SORT' => '100',
                'MULTIPLE' => 'N',
                'MANDATORY' => 'N',
                'SHOW_FILTER' => 'Y',
                'SHOW_IN_LIST' => 'Y',
                'EDIT_IN_LIST' => 'Y',
                'IS_SEARCHABLE' => 'Y',
                'EDIT_FORM_LABEL' => 'Test Field Label',
                'LIST_COLUMN_LABEL' => 'Test Field List Label',
                'LIST_FILTER_LABEL' => 'Test Field Filter Label',
                'ERROR_MESSAGE' => 'Error occurred',
                'HELP_MESSAGE' => 'Help message for Test Field',
                'LIST' => '',
                'SETTINGS' => '',
            ];
        
            $result = $serviceBuilder
                ->getCRMScope()
                ->dealUserfield()
                ->add($userfieldItemFields);
        
            print($result->getId());
        } catch (Throwable $e) {
            print('Error: ' . $e->getMessage());
        }

from b24pysdk.client import BaseClient
        from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        client: BaseClient
        
        try:
            bitrix_response = client.crm.deal.userfield.add(
                fields={
                    "FIELD_NAME": "UF_CRM_DEAL_COMMENT_TEXT",
                    "USER_TYPE_ID": "string",
                    "XML_ID": "deal_comment_text",
                    "SORT": 100,
                    "MULTIPLE": "N",
                    "MANDATORY": "N",
                    "SHOW_FILTER": "Y",
                    "EDIT_FORM_LABEL": {"de": "Deal comment"},
                    "LIST_FILTER_LABEL": {"de": "Deal comment"},
                },
            ).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 of Creating a Custom Field of Type List

cURL (Webhook)

cURL (OAuth)

PHP

Python

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"fields":{"LABEL":"Custom field (list)","USER_TYPE_ID":"enumeration","FIELD_NAME":"ENUMERATION_EXAMPLE","MULTIPLE":"N","MANDATORY":"N","SHOW_FILTER":"Y","LIST":[{"VALUE":"List item #1","DEF":"Y","XML_ID":"XML_ID_1","SORT":100},{"VALUE":"List item #2","XML_ID":"XML_ID_2","SORT":200},{"VALUE":"List item #3","XML_ID":"XML_ID_3","SORT":300},{"VALUE":"List item #4","XML_ID":"XML_ID_4","SORT":400}],"SETTINGS":{"DISPLAY":"UI","LIST_HEIGHT":2},"SORT":2000}}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/crm.deal.userfield.add

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"fields":{"LABEL":"Custom field (list)","USER_TYPE_ID":"enumeration","FIELD_NAME":"ENUMERATION_EXAMPLE","MULTIPLE":"N","MANDATORY":"N","SHOW_FILTER":"Y","LIST":[{"VALUE":"List item #1","DEF":"Y","XML_ID":"XML_ID_1","SORT":100},{"VALUE":"List item #2","XML_ID":"XML_ID_2","SORT":200},{"VALUE":"List item #3","XML_ID":"XML_ID_3","SORT":300},{"VALUE":"List item #4","XML_ID":"XML_ID_4","SORT":400}],"SETTINGS":{"DISPLAY":"UI","LIST_HEIGHT":2},"SORT":2000},"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/crm.deal.userfield.add

BX.rest.callMethod(
            'crm.deal.userfield.add',
            {
                fields: {
                    LABEL: "Custom field (list)",
                    USER_TYPE_ID: "enumeration",
                    FIELD_NAME: "ENUMERATION_EXAMPLE",
                    MULTIPLE: "N",
                    MANDATORY: "N",
                    SHOW_FILTER: "Y",
                    LIST: [
                        {
                            VALUE: "List item #1",
                            DEF: "Y",
                            XML_ID: "XML_ID_1",
                            SORT: 100,
                        },
                        {
                            VALUE: "List item #2",
                            XML_ID: "XML_ID_2",
                            SORT: 200,
                        },
                        {
                            VALUE: "List item #3",
                            XML_ID: "XML_ID_3",
                            SORT: 300,
                        },
                        {
                            VALUE: "List item #4",
                            XML_ID: "XML_ID_4",
                            SORT: 400,
                        },
                    ],
                    SETTINGS: {
                        DISPLAY: "UI",
                        LIST_HEIGHT: 2,
                    },
                    SORT: 2000,
                },
            },
            (result) => {
                result.error()
                    ? console.error(result.error())
                    : console.info(result.data())
                ;
            },
        );

require_once('crest.php');
        
        $result = CRest::call(
            'crm.deal.userfield.add',
            [
                'fields' => [
                    'LABEL' => "Custom field (list)",
                    'USER_TYPE_ID' => "enumeration",
                    'FIELD_NAME' => "ENUMERATION_EXAMPLE",
                    'MULTIPLE' => "N",
                    'MANDATORY' => "N",
                    'SHOW_FILTER' => "Y",
                    'LIST' => [
                        [
                            'VALUE' => "List item #1",
                            'DEF' => "Y",
                            'XML_ID' => "XML_ID_1",
                            'SORT' => 100,
                        ],
                        [
                            'VALUE' => "List item #2",
                            'XML_ID' => "XML_ID_2",
                            'SORT' => 200,
                        ],
                        [
                            'VALUE' => "List item #3",
                            'XML_ID' => "XML_ID_3",
                            'SORT' => 300,
                        ],
                        [
                            'VALUE' => "List item #4",
                            'XML_ID' => "XML_ID_4",
                            'SORT' => 400,
                        ],
                    ],
                    'SETTINGS' => [
                        'DISPLAY' => "UI",
                        'LIST_HEIGHT' => 2,
                    ],
                    'SORT' => 2000,
                ]
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

from b24pysdk.client import BaseClient
        from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        client: BaseClient
        
        try:
            bitrix_response = client.crm.deal.userfield.add(
                fields={
                    "LABEL": "Custom field (list)",
                    "USER_TYPE_ID": "enumeration",
                    "FIELD_NAME": "ENUMERATION_EXAMPLE",
                    "MULTIPLE": "N",
                    "MANDATORY": "N",
                    "SHOW_FILTER": "Y",
                    "LIST": [
                        {
                            "VALUE": "List item #1",
                            "DEF": "Y",
                            "XML_ID": "XML_ID_1",
                            "SORT": 100,
                        },
                        {
                            "VALUE": "List item #2",
                            "XML_ID": "XML_ID_2",
                            "SORT": 200,
                        },
                        {
                            "VALUE": "List item #3",
                            "XML_ID": "XML_ID_3",
                            "SORT": 300,
                        },
                        {
                            "VALUE": "List item #4",
                            "XML_ID": "XML_ID_4",
                            "SORT": 400,
                        },
                    ],
                    "SETTINGS": {
                        "DISPLAY": "UI",
                        "LIST_HEIGHT": 2,
                    },
                    "SORT": 2000,
                },
            ).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}")

Response Handling

HTTP status: 200

{
            "result": 6997,
            "time": {
                "start": 1753789240.8146,
                "finish": 1753789241.058695,
                "duration": 0.2440950870513916,
                "processing": 0.19217395782470703,
                "date_start": "2025-07-29T14:40:40+03:00",
                "date_finish": "2025-07-29T14:40:41+03:00",
                "operating_reset_at": 1753789840,
                "operating": 0.19216084480285645
            }
        }

Returned Data

Name `type`	Description
result `integer`	Root element of the response, contains the identifier of the created custom field
time `time`	Information about the request execution time

Error Handling

HTTP status: 400

{
            "error": "",
            "error_description": "The 'USER_TYPE_ID' field is not found."
        }

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
`400`	`The 'FIELD_NAME' field is not found`	Either an empty `FIELD_NAME` was provided, or it was not provided at all
`400`	`Field name is too long (more than 50 characters).`	The provided `FIELD_NAME` contains more than 50 characters
`400`	`Field name contains invalid characters. Allowed characters are: A-Z, 0-9, and _.`	The provided `FIELD_NAME` contains invalid characters
`400`	`The 'USER_TYPE_ID' field is not found`	Either an empty `USER_TYPE_ID` was provided, or it was not provided at all
`400`	Invalid custom type specified	The provided `USER_TYPE_ID` does not exist
`400`	`List item with value XML_ID='XML_ID' already exists`	The provided `XML_ID` in list items are not unique

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

Update Existing Deal Custom Field

Create a Custom Field for Deals crm.deal.userfield.add

Method ParametersMethod Parameters

Parameter fieldsParameter fields

Parameter SETTINGSParameter SETTINGS

Parameter LISTParameter LIST

Code ExamplesCode Examples

Example of Creating a Custom Field of Type StringExample of Creating a Custom Field of Type String

Example of Creating a Custom Field of Type ListExample of Creating a Custom Field of Type List

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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Method Parameters

Parameter fields

Parameter SETTINGS

Parameter LIST

Code Examples

Example of Creating a Custom Field of Type String

Example of Creating a Custom Field of Type List

Response Handling

Returned Data

Error Handling

Possible Error Codes

Statuses and System Error Codes

Continue Learning