Update Event calendar.event.update

Choose a tool for developing with an AI agent:

use Alaio Vibecode to build an app for Bitrix24 from a task description without knowing any programming language. The agent writes the code and deploys the app to a server, with no manual hosting setup
use the MCP server to develop a REST API integration in your own project. The agent refers to the official REST documentation

Scope: calendar

Who can execute the method: any user

The calendar.event.update method updates an existing event.

Method Parameters

Required parameters are marked with *

Name `type`	Description
id* `integer`	Event identifier. You can obtain the identifier using the calendar.event.get or calendar.event.get.nearest methods
type* `string`	Calendar type: `user` — user calendar `group` — group calendar `company_calendar` — company calendar
ownerId* `integer`	Calendar owner identifier. For the company calendar, the `ownerId` parameter is `0`
from `datetime`\|`date`	Start date and time of the event. You can specify the date without time. To do this, pass the value `Y` in the `skip_time` parameter
to `datetime`\|`date`	End date of the event. You can specify the date without time. To do this, pass the value `Y` in the `skip_time` parameter
from_ts `integer`	Date and time in timestamp format. Can be used instead of the `from` parameter
to_ts `integer`	Date and time in timestamp format. Can be used instead of the `to` parameter
section `integer`	Calendar identifier
name `string`	Event name
skip_time `string`	Pass the date value without time in the `from` and `to` parameters. Possible values: `Y` — use only the date `N` — use date and time Date format according to ISO-8601 standard
timezone_from `string`	Timezone of the start date and time of the event. Default is the current user's timezone. The value should be passed as a string, for example, `Europe/Riga`. Timezone handling features
timezone_to `string`	Timezone of the end date and time of the event. Default value is the current user's timezone. The value should be passed as a string, for example, `Europe/Riga`. Timezone handling features
description `text`	Event description
color `string`	Background color of the event. HEX format, for example `#9cbe1c`. In a JSON request body, pass `#` as is. In a URL string, encode `#` as `%23`: `color=%239cbe1c`
text_color `string`	Text color of the event. HEX format, for example `#283033`. In a JSON request body, pass `#` as is. In a URL string, encode `#` as `%23`: `text_color=%23283033`
accessibility `string`	Availability during the event time: `busy` — busy `absent` — absent `quest` — tentative `free` — free
importance `string`	Event importance: `high` — high `normal` — medium `low` — low
private_event `string`	Mark indicating that the event is private. Possible values: `Y` — private `N` — not private
recurrence_mode `string`	Parameter for partial editing of a recurring event. Possible values: `this` — changes apply only to the current event. Must specify `current_date_from`. `next` — changes apply to the current and all following events. Must specify `current_date_from`. `all` — changes apply to all events in the recurrence chain
current_date_from `date`	Date of the current event for partial editing of a recurring event. Required only for `recurrence_mode` with values `this` or `next`
rrule `object`	Recurrence of the event in the form of an object according to the iCalendar standard (detailed description)
is_meeting `string`	Indicator of a meeting with event participants. Possible values: `Y` — meeting with participants `N` — meeting without participants For a meeting with participants, pass the list of participants in `attendees`
location `string`	Location. You can pass an arbitrary string, for example `Office, 3rd floor`. To book a meeting room, pass a string in the form `calendar_<meeting room ID>`, for example `calendar_1`. The method checks whether the meeting room is free at the specified time
doCheckOccupancy `string`	Whether to check the occupancy of the meeting room from `location`. Possible values: `Y` — check. If the meeting room is occupied, the method returns the `CALENDAR_LOCATION_OCCUPANCY_CONFLICT` error `N` — do not check Default is `Y`
remind `array`	Array of objects describing reminders for the event (detailed description)
attendees `array`	List of participant identifiers for the event. If you pass `is_meeting = Y` and do not pass `attendees`, the attendee list will be cleared. If you do not pass `is_meeting`, the current attendee list will be retained
host `integer`	Meeting organizer identifier. The parameter is applied only together with `is_meeting = Y`. For an event that is not a meeting, it is ignored. If you pass `is_meeting = Y` without `host`, the user on whose behalf the method is executed becomes the organizer. If you pass neither `is_meeting` nor `host`, the current organizer is kept. The parameter does not grant permissions to the calendar, does not change the user on whose behalf the method is executed, and does not add the organizer to the attendee list automatically. You can retrieve the current organizer identifier in the response of the calendar.event.getbyid and calendar.event.get methods in the `MEETING_HOST` field
meeting `object`	Object with meeting parameters (detailed description)
crm_fields `array`	Array of CRM object identifiers to link to the event. To link objects, list their identifiers with prefixes: `CO_` — company `C_` — contact `L_` — lead `D_` — deal

Timezone Handling Features

When working with event dates and times, you can use two approaches:

Full date format with timezone.

Use the ISO-8601 format with timezone specified in the from and to parameters:
- 2025-03-20T15:00:00+02:00 — with offset
- 2025-08-05T10:00:00+11:00 — with offset
- 2025-08-04T23:00:00Z — with UTC specified
The timezone_from and timezone_to parameters are ignored since the timezone is already specified in the date.
Simple date format with separate timezone parameters.

Use the simple format in the from and to parameters:
- 2025-03-20 15:00:00
- 2025-08-05 10:00:00
- 2025-08-05T10:00:00
Specify the timezone in the timezone_from and timezone_to parameters:
- Europe/Riga
- America/New_York
- Asia/Tokyo
If only timezone_from is specified, its value will be used for timezone_to.

Priority of timezone parameter processing:

Highest priority. If the from and to parameters are specified in full format with timezone, the timezone_from and timezone_to parameters are ignored.
Medium priority. If a simple date format is used and timezone_from and timezone_to parameters are specified, they are used.
Lowest priority. If the date format is simple and timezone parameters are not specified, the current user's timezone is used.

rrule Parameter

Name `type`	Description
FREQ `string`	Recurrence frequency `DAILY` — daily `WEEKLY` — weekly `MONTHLY` — monthly `YEARLY` — yearly
COUNT `integer`	Number of recurrences
INTERVAL `integer`	Interval between recurrences
BYDAY `array`	Days of the week `SU` — Sunday `MO` — Monday `TU` — Tuesday `WE` — Wednesday `TH` — Thursday `FR` — Friday `SA` — Saturday
UNTIL `date`	End date of recurrences

remind Parameter

Name
type

Description

type
string

Time type of reminder

min — minutes
hour – hours
day — days

count
integer

Numerical value of the time interval

meeting Parameter

Name `type`	Description
notify `boolean`	Flag for notification of confirmation or refusal from participants
reinvite `boolean`	Flag for requesting re-confirmation of participation when editing the event
allow_invite `boolean`	Flag allowing participants to invite others to the event
hide_guests `boolean`	Flag for hiding the list of participants

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

JS (TS)

JS (UMD)

Python

PHP

BX24.js

PHP CRest

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"id":699,"type":"user","ownerId":2,"name":"Changed Event Name","description":"New description for event","from":"2024-06-17","to":"2024-06-17","skip_time":"Y","section":5,"color":"#9cbe1c","text_color":"#283033","accessibility":"free","importance":"normal","is_meeting":"Y","private_event":"Y","recurrence_mode":"next","current_date_from":"2024-12-04","remind":[{"type":"min","count":10}],"location":"London","attendees":[1,2,3],"host":2,"meeting":{"notify":true,"reinvite":false,"allow_invite":false,"hide_guests":false},"rrule":{"FREQ":"WEEKLY","BYDAY":["MO","WE"],"COUNT":10,"INTERVAL":1},"crm_fields":["C_5","L_11"]}' \
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/calendar.event.update

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"id":699,"type":"user","ownerId":2,"name":"Changed Event Name","description":"New description for event","from":"2024-06-17","to":"2024-06-17","skip_time":"Y","section":5,"color":"#9cbe1c","text_color":"#283033","accessibility":"free","importance":"normal","is_meeting":"Y","private_event":"Y","recurrence_mode":"next","current_date_from":"2024-12-04","remind":[{"type":"min","count":10}],"location":"London","attendees":[1,2,3],"host":2,"meeting":{"notify":true,"reinvite":false,"allow_invite":false,"hide_guests":false},"rrule":{"FREQ":"WEEKLY","BYDAY":["MO","WE"],"COUNT":10,"INTERVAL":1},"crm_fields":["C_5","L_11"],"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/calendar.event.update

// This snippet is an ES module: top-level await requires type="module" or a bundler.
        // $b24 is an already-initialized SDK instance (see the SDK "Get started" guide).
        import { Text } from '@bitrix24/b24jssdk'
        import type { B24Frame } from '@bitrix24/b24jssdk'
        
        declare const $b24: B24Frame
        
        // Shape of the payload returned in result (match the "response handling" section of the page)
        type CalendarEventUpdateResult =
          | number
          | {
              originalDate: string
              originalDavXmlId: string
              instanceTz: string
              recEventId: number
              id: number
            }
        
        try {
          const response = await $b24.actions.v2.call.make<CalendarEventUpdateResult>({
            method: 'calendar.event.update',
            params: {
              id: 699,
              type: 'user',
              ownerId: 2,
              name: 'Changed Event Name',
              description: 'New description for event',
              from: '2024-06-17',
              to: '2024-06-17',
              skip_time: 'Y',
              section: 5,
              color: '#9cbe1c',
              text_color: '#283033',
              accessibility: 'free',
              importance: 'normal',
              is_meeting: 'Y',
              private_event: 'Y',
              recurrence_mode: 'next',
              current_date_from: '2024-12-04',
              remind: [
                {
                  type: 'min',
                  count: 10,
                },
              ],
              location: 'London',
              attendees: [1, 2, 3],
              host: 2,
              meeting: {
                notify: true,
                reinvite: false,
                allow_invite: false,
                hide_guests: false,
              },
              rrule: {
                FREQ: 'WEEKLY',
                BYDAY: ['MO', 'WE'],
                COUNT: 10,
                INTERVAL: 1,
              },
              crm_fields: ['C_5', 'L_11'],
            },
            requestId: Text.getUuidRfc4122()
          })
        
          // The payload is available only on a successful response
          if (!response.isSuccess) {
            console.error(response.getErrorMessages().join('; '))
          } else {
            const result = response.getData()!.result
            console.info('Updated calendar event:', result)
          }
        } catch (error) {
          // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
          console.error(error)
        }

<!-- Load the SDK (UMD build); it is exposed as the global B24Js -->
        <script src="https://unpkg.com/@bitrix24/b24jssdk@1/dist/umd/index.min.js"></script>
        <script>
          async function updateCalendarEvent() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'calendar.event.update',
                params: {
                  id: 699,
                  type: 'user',
                  ownerId: 2,
                  name: 'Changed Event Name',
                  description: 'New description for event',
                  from: '2024-06-17',
                  to: '2024-06-17',
                  skip_time: 'Y',
                  section: 5,
                  color: '#9cbe1c',
                  text_color: '#283033',
                  accessibility: 'free',
                  importance: 'normal',
                  is_meeting: 'Y',
                  private_event: 'Y',
                  recurrence_mode: 'next',
                  current_date_from: '2024-12-04',
                  remind: [
                    {
                      type: 'min',
                      count: 10,
                    },
                  ],
                  location: 'London',
                  attendees: [1, 2, 3],
                  host: 2,
                  meeting: {
                    notify: true,
                    reinvite: false,
                    allow_invite: false,
                    hide_guests: false,
                  },
                  rrule: {
                    FREQ: 'WEEKLY',
                    BYDAY: ['MO', 'WE'],
                    COUNT: 10,
                    INTERVAL: 1,
                  },
                  crm_fields: ['C_5', 'L_11'],
                },
                requestId: B24Js.Text.getUuidRfc4122()
              })
        
              // The payload is available only on a successful response
              if (!response.isSuccess) {
                console.error(response.getErrorMessages().join('; '))
                return
              }
        
              const result = response.getData().result
              console.info('Updated calendar event:', result)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', updateCalendarEvent)
        </script>

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.calendar.event.update(
                bitrix_id=699,
                type="user",
                owner_id=2,
                name="Changed Event Name",
                description="New description for event",
                from_date="2024-06-17",
                to="2024-06-17",
                skip_time="Y",
                section=5,
                color="#9cbe1c",
                text_color="#283033",
                accessibility="free",
                importance="normal",
                is_meeting="Y",
                private_event="Y",
                recurrence_mode="next",
                current_date_from="2024-12-04",
                remind=[
                    {
                        "type": "min",
                        "count": 10,
                    },
                ],
                location="London",
                attendees=[
                    1,
                    2,
                    3,
                ],
                host=2,
                meeting={
                    "notify": True,
                    "reinvite": False,
                    "allow_invite": False,
                    "hide_guests": False,
                },
                rrule={
                    "FREQ": "WEEKLY",
                    "BYDAY": [
                        "MO",
                        "WE",
                    ],
                    "COUNT": 10,
                    "INTERVAL": 1,
                },
                crm_fields=[
                    "C_5",
                    "L_11",
                ],
            ).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 {
            $response = $b24Service
                ->core
                ->call(
                    'calendar.event.update',
                    [
                        'id'              => 699,
                        'type'            => 'user',
                        'ownerId'         => 2,
                        'name'            => 'Changed Event Name',
                        'description'     => 'New description for event',
                        'from'            => '2024-06-17',
                        'to'              => '2024-06-17',
                        'skip_time'       => 'Y',
                        'section'         => 5,
                        'color'           => '#9cbe1c',
                        'text_color'      => '#283033',
                        'accessibility'   => 'free',
                        'importance'      => 'normal',
                        'is_meeting'      => 'Y',
                        'private_event'   => 'Y',
                        'recurrence_mode' => 'next',
                        'current_date_from' => '2024-12-04',
                        'remind'          => [
                            [
                                'type'  => 'min',
                                'count' => 10
                            ]
                        ],
                        'location'        => 'London',
                        'attendees'       => [1, 2, 3],
                        'host'            => 2,
                        'meeting'         => [
                            'notify'      => true,
                            'reinvite'    => false,
                            'allow_invite' => false,
                            'hide_guests' => false,
                        ],
                        'rrule'           => [
                            'FREQ'     => 'WEEKLY',
                            'BYDAY'    => ['MO', 'WE'],
                            'COUNT'    => 10,
                            'INTERVAL' => 1,
                        ],
                        'crm_fields'      => ['C_5', 'L_11']
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            // Your data processing logic
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error updating calendar event: ' . $e->getMessage();
        }

BX24.callMethod(
            'calendar.event.update',
            {
                id: 699,
                type: 'user',
                ownerId: 2,
                name: 'Changed Event Name',
                description: 'New description for event',
                from: '2024-06-17',
                to: '2024-06-17',
                skip_time: 'Y',
                section: 5,
                color: '#9cbe1c',
                text_color: '#283033',
                accessibility: 'free',
                importance: 'normal',
                is_meeting: 'Y',
                private_event: 'Y',
                recurrence_mode: 'next',
                current_date_from: '2024-12-04',
                remind: [
                    {
                        type: 'min',
                        count: 10
                    }
                ],
                location: 'London',
                attendees: [1, 2, 3],
                host: 2,
                meeting: {
                    notify: true,
                    reinvite: false,
                    allow_invite: false,
                    hide_guests: false,
                },
                rrule: {
                    FREQ: 'WEEKLY',
                    BYDAY: ['MO', 'WE'],
                    COUNT: 10,
                    INTERVAL: 1,
                },
                crm_fields: ['C_5', 'L_11']
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'calendar.event.update',
            [
                'id' => 699,
                'type' => 'user',
                'ownerId' => 2,
                'name' => 'Changed Event Name',
                'description' => 'New description for event',
                'from' => '2024-06-17',
                'to' => '2024-06-17',
                'skip_time' => 'Y',
                'section' => 5,
                'color' => '#9cbe1c',
                'text_color' => '#283033',
                'accessibility' => 'free',
                'importance' => 'normal',
                'is_meeting' => 'Y',
                'private_event' => 'Y',
                'recurrence_mode' => 'next',
                'current_date_from' => '2024-12-04',
                'remind' => [
                    [
                        'type' => 'min',
                        'count' => 10
                    ]
                ],
                'location' => 'London',
                'attendees' => [1, 2, 3],
                'host' => 2,
                'meeting' => [
                    'notify' => true,
                    'reinvite' => false,
                    'allow_invite' => false,
                    'hide_guests' => false,
                ],
                'rrule' => [
                    'FREQ' => 'WEEKLY',
                    'BYDAY' => ['MO', 'WE'],
                    'COUNT' => 10,
                    'INTERVAL' => 1,
                ],
                'crm_fields' => ['C_5', 'L_11']
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "calendar.event.update", b24.Params{
        	"id":                699,
        	"type":              "user",
        	"ownerId":           2,
        	"name":              "Changed Event Name",
        	"description":       "New description for event",
        	"from":              "2024-06-17",
        	"to":                "2024-06-17",
        	"skip_time":         "Y",
        	"section":           5,
        	"color":             "#9cbe1c",
        	"text_color":        "#283033",
        	"accessibility":     "free",
        	"importance":        "normal",
        	"is_meeting":        "Y",
        	"private_event":     "Y",
        	"recurrence_mode":   "next",
        	"current_date_from": "2024-12-04",
        	"remind": []b24.Params{
        		{
        			"type":  "min",
        			"count": 10,
        		},
        	},
        	"location":  "London",
        	"attendees": []int{1, 2, 3},
        	"host":      2,
        	"meeting": b24.Params{
        		"notify":       true,
        		"reinvite":     false,
        		"allow_invite": false,
        		"hide_guests":  false,
        	},
        	"rrule": b24.Params{
        		"FREQ":     "WEEKLY",
        		"BYDAY":    []string{"MO", "WE"},
        		"COUNT":    10,
        		"INTERVAL": 1,
        	},
        	"crm_fields": []string{"C_5", "L_11"},
        })
        if err != nil {
        	return fmt.Errorf("calendar.event.update: %w", err)
        }
        
        var value b24.ID
        if err := json.Unmarshal(res.Result, &value); err != nil {
        	return fmt.Errorf("parse response: %w", err)
        }
        fmt.Println("result:", value)

Response Handling

HTTP status: 200

Single Event

Recurring Event

{
            "result": 1246,
            "time": {
                "start": 1733318565.183275,
                "finish": 1733318565.695058,
                "duration": 0.5117831230163574,
                "processing": 0.29406094551086426,
                "date_start": "2024-12-04T13:22:45+00:00",
                "date_finish": "2024-12-04T13:22:45+00:00"
            }
        }

{
            "result": {
                "originalDate": "12/24/2024 05:59:00 pm",
                "originalDavXmlId": "20241205T124346Z-e3ccab8aebc16d0c5cccecb63fef2bc3@b24evo.lan",
                "instanceTz": "Europe/Riga",
                "recEventId": 1261,
                "id": 1260
            },
            "time": {
                "start": 1733402626.139122,
                "finish": 1733402626.740063,
                "duration": 0.6009409427642822,
                "processing": 0.3765721321105957,
                "date_start": "2024-12-05T12:43:46+00:00",
                "date_finish": "2024-12-05T12:43:46+00:00"
            }
        }

Returned Data

Single Event

Recurring Event

Name `type`	Description
result `integer`	Identifier of the updated event
time `time`	Information about the request execution time

Name `type`	Description
result `object`	Data of the new series of the recurring event (detailed description)
time `time`	Information about the request execution time

result Object

Name `type`	Description
originalDate `datetime`	Start date of the new series of the recurring event
originalDavXmlId `string`	Event identifier for synchronization
instanceTz `string`	Event timezone
recEventId `integer`	Identifier of the new series of the recurring event
id `integer`	Identifier of the previous series of the recurring event

Error Handling

HTTP status: 400

{
            "error": "",
            "error_description": "The mandatory parameter \"ownerId\" is not specified for the method \"calendar.event.update\""
        }

Meeting room occupancy errors are returned with HTTP status 200:

{
            "error": "CALENDAR_LOCATION_OCCUPANCY_CONFLICT",
            "error_description": "The meeting room is occupied at the specified time",
            "additional": {
                "occupancy": {
                    "dates": [],
                    "truncated": false
                }
            }
        }

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

Status	Code	Description	Value
`400`	Empty value	The mandatory parameter "id" is not specified for the method "calendar.event.update"	The required parameter `id` is not provided
`400`	Empty value	The mandatory parameter "ownerId" is not specified for the method "calendar.event.update"	The required parameter `ownerId` is not provided
`400`	Empty value	The mandatory parameter "type" is not specified for the method "calendar.event.update"	The required parameter `type` is not provided
`400`	Empty value	Invalid parameter value for "name"	Incorrect data format in the `name` field
`400`	Empty value	Invalid parameter value for "description"	Incorrect data format in the `description` field
`400`	Empty value	Access denied	Updating events in the specified calendar is prohibited
`400`	Empty value	You have specified an invalid calendar section ID or the current user does not have access to it	An identifier of an inaccessible or non-existent calendar is provided
`400`	Empty value	Invalid edit type for recurring event	An incorrect value for the `recurrence_mode` field is provided
`400`	Empty value	Event to CRM association list must be an array	Incorrect data format in the `crm_fields` field
`400`	Empty value	Error while editing event	Another error
`400`	Empty value	Invalid parameter value for "doCheckOccupancy"	A value other than `Y` or `N` is passed in `doCheckOccupancy`
`200`	`CALENDAR_LOCATION_OCCUPANCY_CONFLICT`	The meeting room is occupied at the specified time	The meeting room from `location` is occupied at the specified time or does not exist. The response contains the `additional.occupancy` object with the fields `dates` — an array of occupancy dates in the `YYYY-MM-DDThh:mm:ssZ` format, and `truncated` — a flag indicating that the list of dates is incomplete. Dates are returned only if the user has access to view them; otherwise, the array is empty
`200`	`CALENDAR_LOCATION_OCCUPANCY_INVALID_INTERVAL`	ROOM OCCUPANCY INTERVAL IS INVALID	The availability of the meeting room from `location` cannot be checked against the event dates. The error occurs if an event with a meeting room starts on or before January 1, 1970, including when other fields of such an event are updated. To save the changes without the check, pass `doCheckOccupancy` with the value `N`
`200`	`CALENDAR_LOCATION_OCCUPANCY_LOCKED`	The meeting room is currently selected for another event. Try again later or select another one	Another event is booking the meeting room at this moment. Repeat the request later

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

Continue Learning

Was the article helpful?

Add Event

Get Event by ID

Update Event calendar.event.update

Method ParametersMethod Parameters

Timezone Handling FeaturesTimezone Handling Features

rrule Parameterrrule Parameter

remind Parameterremind Parameter

meeting Parametermeeting Parameter

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

result Objectresult Object

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

Continue LearningContinue Learning