> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Update an event

> Call this API to update the information of a single event, with request and response details.

Call this API to update the information of a single event.

## API call description

* Only the organizer is allowed to update an event. Therefore, the `userId` field in the path must be the organizer's unionId.
* Pass only the fields that need to be updated in the request. Fields that are not passed remain unchanged.
* Each operation on event attendees supports up to 500 users, and events with up to 5,000 attendees are supported.
* To add or remove event attendees, use the [Add event attendees](/open/development/add-schedule-participant#) and [Remove event attendees](/open/development/delete-schedule-participant#) APIs.

## Request

### Basic information

| Field                | Value                                                                                          |
| -------------------- | ---------------------------------------------------------------------------------------------- |
| HTTP URL             | `https://api.dingtalk.io/v1.0/calendar/users/{userId}/calendars/{calendarId}/events/{eventId}` |
| HTTP Method          | PUT                                                                                            |
| Supported app types  | appType-Internal app　appType-Third-party enterprise app　appType-Third-party personal app       |
| Required permissions | permission-Calendar.Event.Write-Write permission for events in the Calendar app                |

### Request headers

| Name                        | Type   | Required | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| --------------------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| x-client-token              | String | No       | Idempotency check.       - The same `x-client-token` indicates the same request. - Expires in 1 day.                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| x-acs-dingtalk-access-token | String | Yes      | The access credential used to call this API. Obtain it as follows:   - For an internal app, call the [Get the access token of an internal app](/open/development/obtain-the-access-token-of-an-internal-app#) API. - For a third-party enterprise app, call the [Get the access token of an enterprise authorized to a third-party app](https://open.dingtalk.com/document/development/obtain-the-access-token-of-the-authorized-enterprise-1#) API. - For a third-party personal app, call the [Get a user token](/open/development/obtain-user-token#) API. |

### Path parameters

| Name       | Type   | Required | Description                                                                                                                                                                                                                                                                                                                                                                                               |
| ---------- | ------ | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| userId     | String | Yes      | The unionId of the event organizer.   - For internal apps and third-party enterprise apps, call the [Query user details](/open/development/query-user-details#) API to obtain the value of the `unionid` parameter. - For third-party personal apps, call the [Get user profile from contacts](/open/development/dingtalk-retrieve-user-information#) API to obtain the value of the `unionId` parameter. |
| calendarId | String | Yes      | The ID of the calendar to which the event belongs. Set this parameter to `primary`, which represents the user's primary calendar.                                                                                                                                                                                                                                                                         |
| eventId    | String | Yes      | The event ID. Call the [Query an event list](/open/development/query-an-event-list#) API to obtain the value of the `id` parameter.                                                                                                                                                                                                                                                                       |

### Request body

| Name                | Type                  | Required | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| ------------------- | --------------------- | -------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| summary             | String                | No       | The event title.                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| id                  | String                | Yes      | The event ID.                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| description         | String                | No       | The event description.                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| start               | Object                | No       | The event start time.                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| date                | String                | No       | The event start date in the format `yyyy-MM-dd`.     - Required for an all-day event. - Must be empty for a non-all-day event.                                                                                                                                                                                                                                                                                                                                 |
| dateTime            | String                | No       | The event start time in ISO-8601 date-time format.     - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                                               |
| timeZone            | String                | No       | The time zone of the event start time, in TZ database name format.     - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                               |
| end                 | Object                | No       | The event end time.    The number of recurrences (**numberOfOccurrences**) and the event end time (**end**) cannot be set at the same time.                                                                                                                                                                                                                                                                                                                    |
| date                | String                | No       | The event end date in the format `yyyy-MM-dd`.     - Required for an all-day event. - Must be empty for a non-all-day event.                                                                                                                                                                                                                                                                                                                                   |
| dateTime            | String                | No       | The event end time in ISO-8601 date-time format.     - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                                                 |
| timeZone            | String                | No       | The time zone of the event end time. It must be the same as the time zone of the start time, in TZ database name format.     - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                         |
| isAllDay            | Boolean               | No       | Whether the event is an all-day event.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                                     |
| recurrence          | Object                | No       | The event recurrence rule.                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| pattern             | Object                | No       | The recurrence pattern.                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| type                | String                | No       | The recurrence pattern type.   - **daily**: Repeats every **interval** days. - **weekly**: Repeats on **daysOfWeek** every **interval** weeks. - **absoluteMonthly**: Repeats on day **dayOfMonth** every **interval** months. - **relativeMonthly**: Repeats on **daysOfWeek** of the **index** week every **interval** months. - **absoluteYearly**: Repeats every **interval** years.                                                                       |
| dayOfMonth          | Integer               | No       | Specifies the day of the month when the recurrence pattern **type** is **absoluteMonthly**.                                                                                                                                                                                                                                                                                                                                                                    |
| daysOfWeek          | String                | No       | Specifies the day of the week in lowercase English. Separate multiple values with commas.                                                                                                                                                                                                                                                                                                                                                                      |
| index               | String                | No       | Specifies the week of the month when the `type` is `relativeMonthly`.   - **first**: The first week. - **second**: The second week. - **third**: The third week. - **fourth**: The fourth week. - **last**: The last week.                                                                                                                                                                                                                                     |
| interval            | Integer               | No       | The recurrence interval. The unit varies depending on the `type`.      For example:   - When **type** is **daily**, it represents an interval of N days. - When **type** is **absoluteYearly**, it represents an interval of N years.                                                                                                                                                                                                                          |
| firstDayOfWeek      | String                | No       | The first day of the week. Valid values: sunday, monday, tuesday, wednesday, thursday, friday, saturday. Default: "sunday".                                                                                                                                                                                                                                                                                                                                    |
| range               | Object                | No       | The recurrence range.                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| type                | String                | No       | The recurrence range type.   - **noEnd**: Never ends. - **endDate**: Ends on a specified date. - **numbered**: Ends after a specified number of recurrences.                                                                                                                                                                                                                                                                                                   |
| endDate             | String                | No       | The recurrence end time.      **endDate** and **numberOfOccurrences** cannot be set at the same time.                                                                                                                                                                                                                                                                                                                                                          |
| numberOfOccurrences | Integer               | No       | The number of recurrences.      **endDate** and **numberOfOccurrences** cannot be set at the same time.                                                                                                                                                                                                                                                                                                                                                        |
| attendees           | Array                 | No       | The list of event attendees.                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| id                  | String                | No       | The user's unionId.                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| email               | String                | No       | The mail address.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| isOptional          | Boolean               | No       | Whether the attendee is optional.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                                          |
| location            | Object                | No       | The event location.                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| displayName         | String                | No       | The name of the event location.                                                                                                                                                                                                                                                                                                                                                                                                                                |
| extra               | `Map<String, String>` | No       | A JSON-formatted set of extension switches. Optional. The attributes are defined as follows:   - **noPushNotification**: Whether to send a DingTalk push notification to associated users when the event is created.    - **true**: Do not send.   - **false**: Send. - **noChatNotification**: Whether to send a direct message card to attendees when the event is created.    - **true**: Do not send.   - **false**: Send.                                 |
| reminders           | Array                 | No       | Event reminders. Multiple reminders can be added.   - If this parameter is not passed, the default reminder time is:    - **Non-all-day event**: 15 minutes before the start time.   - **All-day event**: 9 AM on the day before the start. - If empty data is passed, no reminder is created.                                                                                                                                                                 |
| method              | String                | No       | The reminder method.   - **dingtalk**: In-app reminder on DingTalk.                                                                                                                                                                                                                                                                                                                                                                                            |
| minutes             | Integer               | No       | Sends the reminder N minutes before the event starts.                                                                                                                                                                                                                                                                                                                                                                                                          |
| onlineMeetingInfo   | Object                | No       | The video meeting.  Passing this field on update creates a new video meeting. If a video meeting already exists, passing this field overwrites the existing one.                                                                                                                                                                                                                                                                                               |
| type                | String                | No       | The online meeting type.   - **dingtalk**: DingTalk video meeting.                                                                                                                                                                                                                                                                                                                                                                                             |
| richTextDescription | Object                | No       | The rich text field.                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| text                | String                | No       | The rich text value.                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| uiConfigs           | Array                 | No       | UI configurations that control the display of components on the event details page.                                                                                                                                                                                                                                                                                                                                                                            |
| uiName              | String                | Yes      | The component name. Valid values (continuously updated):   - **updateEventButton**: Edit Event button. - **deleteEventButton**: Delete Event button. - **transferEventButton**: Transfer Event button. - **attendee**: Attendee area. - **comment**: Event comment area.                                                                                                                                                                                       |
| uiStatus            | String                | Yes      | The component status. Valid values:   - **hide**: Hidden. - **disable**: Disabled (supported on the new details page; not supported on earlier versions, where the component is hidden instead).    For button components: cannot be clicked.   For area components: cannot be interacted with. For example, if the comment area is set to disable, comments cannot be written, but existing comments remain visible. - **enable**: Available (default state). |

### Request example

HTTP

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
PUT /v1.0/calendar/users/iiiP35sJaxxx/calendars/primary/events/cnNTbWxxx HTTP/1.1
Host:api.dingtalk.io
x-client-token:******
x-acs-dingtalk-access-token:dd438xxx
Content-Type:application/json

{
  "summary" : "some event",
  "id" : "cnNTbWxxx",
  "description" : "This is an event",
  "start" : {
    "date" : "2020-01-01",
    "dateTime" : "2020-01-01T10:15:30+08:00",
    "timeZone" : "Asia/Shanghai"
  },
  "end" : {
    "date" : "2020-01-02",
    "dateTime" : "2020-01-01T10:15:30+08:00",
    "timeZone" : "Asia/Shanghai"
  },
  "isAllDay" : false,
  "recurrence" : {
    "pattern" : {
      "type" : "daily",
      "dayOfMonth" : 1,
      "daysOfWeek" : "sunday",
      "index" : "last",
      "interval" : 1
    },
    "range" : {
      "type" : "endDate",
      "endDate" : "2021-12-31T10:15:30+08:00",
      "numberOfOccurrences" : 1
    }
  },
  "attendees" : [ {
    "id" : "iiiP35sJadba8aBSgjrwPRKgiEiF",
    "isOptional" : false
  } ],
  "location" : {
    "displayName" : "room 1-2-3"
  },
  "reminders" : [ {
    "method" : "dingtalk",
    "minutes" : 15
  } ],
  "onlineMeetingInfo" : {
    "type" : "dingtalk"
  },
  "richTextDescription" : { },
  "uiConfigs" : [ { } ]
}
```

Java

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.
package com.aliyun.sample;

import com.aliyun.tea.*;

public class Sample {

    /**
     * Initialize the account client using a token.
     * @return Client
     * @throws Exception
     */
    public static com.aliyun.dingtalkcalendar_1_0.Client createClient() throws Exception {
        com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config();
        config.protocol = "https";
        config.regionId = "central";
        return new com.aliyun.dingtalkcalendar_1_0.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        java.util.List<String> args = java.util.Arrays.asList(args_);
        com.aliyun.dingtalkcalendar_1_0.Client client = Sample.createClient();
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventHeaders patchEventHeaders = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventHeaders();
        patchEventHeaders.xAcsDingtalkAccessToken = "<your access token>";
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestUiConfigs uiConfigs0 = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestUiConfigs();
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRichTextDescription richTextDescription = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRichTextDescription();
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestOnlineMeetingInfo onlineMeetingInfo = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestOnlineMeetingInfo()
                .setType("dingtalk");
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestReminders reminders0 = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestReminders()
                .setMethod("dingtalk")
                .setMinutes(15);
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestLocation location = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestLocation()
                .setDisplayName("room 1-2-3");
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestAttendees attendees0 = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestAttendees()
                .setId("iiiP35sJadba8aBSgjrwPRKgiEiF")
                .setIsOptional(false);
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrenceRange recurrenceRange = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrenceRange()
                .setType("endDate")
                .setEndDate("2021-12-31T10:15:30+08:00")
                .setNumberOfOccurrences(1);
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrencePattern recurrencePattern = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrencePattern()
                .setType("daily")
                .setDayOfMonth(1)
                .setDaysOfWeek("sunday")
                .setIndex("last")
                .setInterval(1);
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrence recurrence = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestRecurrence()
                .setPattern(recurrencePattern)
                .setRange(recurrenceRange);
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestEnd end = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestEnd()
                .setDate("2020-01-02")
                .setDateTime("2020-01-01T10:15:30+08:00")
                .setTimeZone("Asia/Shanghai");
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestStart start = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest.PatchEventRequestStart()
                .setDate("2020-01-01")
                .setDateTime("2020-01-01T10:15:30+08:00")
                .setTimeZone("Asia/Shanghai");
        com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest patchEventRequest = new com.aliyun.dingtalkcalendar_1_0.models.PatchEventRequest()
                .setSummary("some event")
                .setId("cnNTbWxxx")
                .setDescription("This is an event")
                .setStart(start)
                .setEnd(end)
                .setIsAllDay(false)
                .setRecurrence(recurrence)
                .setAttendees(java.util.Arrays.asList(
                    attendees0
                ))
                .setLocation(location)
                .setReminders(java.util.Arrays.asList(
                    reminders0
                ))
                .setOnlineMeetingInfo(onlineMeetingInfo)
                .setRichTextDescription(richTextDescription)
                .setUiConfigs(java.util.Arrays.asList(
                    uiConfigs0
                ));
        try {
            client.patchEventWithOptions("iiiP35sJaxxx", "primary", "cnNTbWxxx", patchEventRequest, patchEventHeaders, new com.aliyun.teautil.models.RuntimeOptions());
        } catch (TeaException err) {
            if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
                // err contains the code and message attributes, which help locate the issue.
            }

        } catch (Exception _err) {
            TeaException err = new TeaException(_err.getMessage(), _err);
            if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
                // err contains the code and message attributes, which help locate the issue.
            }

        }        
    }
}
```

Python

```python theme={"theme":{"light":"github-light","dark":"github-dark"}}
# -*- coding: utf-8 -*-
# This file is auto-generated, don't edit it. Thanks.
import os
import sys

from typing import List

from alibabacloud_dingtalk.calendar_1_0.client import Client as dingtalkcalendar_1_0Client
from alibabacloud_tea_openapi import models as open_api_models
from alibabacloud_dingtalk.calendar_1_0 import models as dingtalkcalendar__1__0_models
from alibabacloud_tea_util import models as util_models
from alibabacloud_tea_util.client import Client as UtilClient

class Sample:
    def __init__(self):
        pass

    @staticmethod
    def create_client() -> dingtalkcalendar_1_0Client:
        """
        Initialize the account client using a token.
        @return: Client
        @throws Exception
        """
        config = open_api_models.Config()
        config.protocol = 'https'
        config.region_id = 'central'
        return dingtalkcalendar_1_0Client(config)

    @staticmethod
    def main(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        patch_event_headers = dingtalkcalendar__1__0_models.PatchEventHeaders()
        patch_event_headers.x_acs_dingtalk_access_token = '<your access token>'
        ui_configs_0 = dingtalkcalendar__1__0_models.PatchEventRequestUiConfigs()
        rich_text_description = dingtalkcalendar__1__0_models.PatchEventRequestRichTextDescription()
        online_meeting_info = dingtalkcalendar__1__0_models.PatchEventRequestOnlineMeetingInfo(
            type='dingtalk'
        )
        reminders_0 = dingtalkcalendar__1__0_models.PatchEventRequestReminders(
            method='dingtalk',
            minutes=15
        )
        location = dingtalkcalendar__1__0_models.PatchEventRequestLocation(
            display_name='room 1-2-3'
        )
        attendees_0 = dingtalkcalendar__1__0_models.PatchEventRequestAttendees(
            id='iiiP35sJadba8aBSgjrwPRKgiEiF',
            is_optional=False
        )
        recurrence_range = dingtalkcalendar__1__0_models.PatchEventRequestRecurrenceRange(
            type='endDate',
            end_date='2021-12-31T10:15:30+08:00',
            number_of_occurrences=1
        )
        recurrence_pattern = dingtalkcalendar__1__0_models.PatchEventRequestRecurrencePattern(
            type='daily',
            day_of_month=1,
            days_of_week='sunday',
            index='last',
            interval=1
        )
        recurrence = dingtalkcalendar__1__0_models.PatchEventRequestRecurrence(
            pattern=recurrence_pattern,
            range=recurrence_range
        )
        end = dingtalkcalendar__1__0_models.PatchEventRequestEnd(
            date='2020-01-02',
            date_time='2020-01-01T10:15:30+08:00',
            time_zone='Asia/Shanghai'
        )
        start = dingtalkcalendar__1__0_models.PatchEventRequestStart(
            date='2020-01-01',
            date_time='2020-01-01T10:15:30+08:00',
            time_zone='Asia/Shanghai'
        )
        patch_event_request = dingtalkcalendar__1__0_models.PatchEventRequest(
            summary='some event',
            id='cnNTbWxxx',
            description='This is an event',
            start=start,
            end=end,
            is_all_day=False,
            recurrence=recurrence,
            attendees=[
                attendees_0
            ],
            location=location,
            reminders=[
                reminders_0
            ],
            online_meeting_info=online_meeting_info,
            rich_text_description=rich_text_description,
            ui_configs=[
                ui_configs_0
            ]
        )
        try:
            client.patch_event_with_options('iiiP35sJaxxx', 'primary', 'cnNTbWxxx', patch_event_request, patch_event_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains the code and message attributes, which help locate the issue.
                pass

    @staticmethod
    async def main_async(
        args: List[str],
    ) -> None:
        client = Sample.create_client()
        patch_event_headers = dingtalkcalendar__1__0_models.PatchEventHeaders()
        patch_event_headers.x_acs_dingtalk_access_token = '<your access token>'
        ui_configs_0 = dingtalkcalendar__1__0_models.PatchEventRequestUiConfigs()
        rich_text_description = dingtalkcalendar__1__0_models.PatchEventRequestRichTextDescription()
        online_meeting_info = dingtalkcalendar__1__0_models.PatchEventRequestOnlineMeetingInfo(
            type='dingtalk'
        )
        reminders_0 = dingtalkcalendar__1__0_models.PatchEventRequestReminders(
            method='dingtalk',
            minutes=15
        )
        location = dingtalkcalendar__1__0_models.PatchEventRequestLocation(
            display_name='room 1-2-3'
        )
        attendees_0 = dingtalkcalendar__1__0_models.PatchEventRequestAttendees(
            id='iiiP35sJadba8aBSgjrwPRKgiEiF',
            is_optional=False
        )
        recurrence_range = dingtalkcalendar__1__0_models.PatchEventRequestRecurrenceRange(
            type='endDate',
            end_date='2021-12-31T10:15:30+08:00',
            number_of_occurrences=1
        )
        recurrence_pattern = dingtalkcalendar__1__0_models.PatchEventRequestRecurrencePattern(
            type='daily',
            day_of_month=1,
            days_of_week='sunday',
            index='last',
            interval=1
        )
        recurrence = dingtalkcalendar__1__0_models.PatchEventRequestRecurrence(
            pattern=recurrence_pattern,
            range=recurrence_range
        )
        end = dingtalkcalendar__1__0_models.PatchEventRequestEnd(
            date='2020-01-02',
            date_time='2020-01-01T10:15:30+08:00',
            time_zone='Asia/Shanghai'
        )
        start = dingtalkcalendar__1__0_models.PatchEventRequestStart(
            date='2020-01-01',
            date_time='2020-01-01T10:15:30+08:00',
            time_zone='Asia/Shanghai'
        )
        patch_event_request = dingtalkcalendar__1__0_models.PatchEventRequest(
            summary='some event',
            id='cnNTbWxxx',
            description='This is an event',
            start=start,
            end=end,
            is_all_day=False,
            recurrence=recurrence,
            attendees=[
                attendees_0
            ],
            location=location,
            reminders=[
                reminders_0
            ],
            online_meeting_info=online_meeting_info,
            rich_text_description=rich_text_description,
            ui_configs=[
                ui_configs_0
            ]
        )
        try:
            await client.patch_event_with_options_async('iiiP35sJaxxx', 'primary', 'cnNTbWxxx', patch_event_request, patch_event_headers, util_models.RuntimeOptions())
        except Exception as err:
            if not UtilClient.empty(err.code) and not UtilClient.empty(err.message):
                # err contains the code and message attributes, which help locate the issue.
                pass

if __name__ == '__main__':
    Sample.main(sys.argv[1:])
```

PHP

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
<?php

// This file is auto-generated, don't edit it. Thanks.
namespace AlibabaCloud\SDK\Sample;

use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Dingtalk;
use \Exception;
use AlibabaCloud\Tea\Exception\TeaError;
use AlibabaCloud\Tea\Utils\Utils;

use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventHeaders;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\uiConfigs;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\richTextDescription;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\onlineMeetingInfo;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\reminders;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\location;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\attendees;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\recurrence\range;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\recurrence\pattern;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\recurrence;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\end;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest\start;
use AlibabaCloud\SDK\Dingtalk\Vcalendar_1_0\Models\PatchEventRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;

class Sample {

    /**
     * Initialize the account client using a token.
     * @return Dingtalk Client
     */
    public static function createClient(){
        $config = new Config([]);
        $config->protocol = "https";
        $config->regionId = "central";
        return new Dingtalk($config);
    }

    /**
     * @param string[] $args
     * @return void
     */
    public static function main($args){
        $client = self::createClient();
        $patchEventHeaders = new PatchEventHeaders([]);
        $patchEventHeaders->xAcsDingtalkAccessToken = "<your access token>";
        $uiConfigs0 = new uiConfigs([]);
        $richTextDescription = new richTextDescription([]);
        $onlineMeetingInfo = new onlineMeetingInfo([
            "type" => "dingtalk"
        ]);
        $reminders0 = new reminders([
            "method" => "dingtalk",
            "minutes" => 15
        ]);
        $location = new location([
            "displayName" => "room 1-2-3"
        ]);
        $attendees0 = new attendees([
            "id" => "iiiP35sJadba8aBSgjrwPRKgiEiF",
            "isOptional" => false
        ]);
        $recurrenceRange = new range([
            "type" => "endDate",
            "endDate" => "2021-12-31T10:15:30+08:00",
            "numberOfOccurrences" => 1
        ]);
        $recurrencePattern = new pattern([
            "type" => "daily",
            "dayOfMonth" => 1,
            "daysOfWeek" => "sunday",
            "index" => "last",
            "interval" => 1
        ]);
        $recurrence = new recurrence([
            "pattern" => $recurrencePattern,
            "range" => $recurrenceRange
        ]);
        $end = new end([
            "date" => "2020-01-02",
            "dateTime" => "2020-01-01T10:15:30+08:00",
            "timeZone" => "Asia/Shanghai"
        ]);
        $start = new start([
            "date" => "2020-01-01",
            "dateTime" => "2020-01-01T10:15:30+08:00",
            "timeZone" => "Asia/Shanghai"
        ]);
        $patchEventRequest = new PatchEventRequest([
            "summary" => "some event",
            "id" => "cnNTbWxxx",
            "description" => "This is an event",
            "start" => $start,
            "end" => $end,
            "isAllDay" => false,
            "recurrence" => $recurrence,
            "attendees" => [
                $attendees0
            ],
            "location" => $location,
            "reminders" => [
                $reminders0
            ],
            "onlineMeetingInfo" => $onlineMeetingInfo,
            "richTextDescription" => $richTextDescription,
            "uiConfigs" => [
                $uiConfigs0
            ]
        ]);
        try {
            $client->patchEventWithOptions("iiiP35sJaxxx", "primary", "cnNTbWxxx", $patchEventRequest, $patchEventHeaders, new RuntimeOptions([]));
        }
        catch (Exception $err) {
            if (!($err instanceof TeaError)) {
                $err = new TeaError([], $err->getMessage(), $err->getCode(), $err);
            }
            if (!Utils::empty_($err->code) && !Utils::empty_($err->message)) {
                // err contains the code and message attributes, which help locate the issue.
            }
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($path)) {
    require_once $path;
}
Sample::main(array_slice($argv, 1));
```

Go

```go theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.
package main

import (
  "os"
  util  "github.com/alibabacloud-go/tea-utils/v2/service"
  dingtalkcalendar_1_0  "github.com/alibabacloud-go/dingtalk/calendar_1_0"
  openapi  "github.com/alibabacloud-go/darabonba-openapi/v2/client"
  "github.com/alibabacloud-go/tea/tea"
)

/**
 * Initialize the account client using a token.
 * @return Client
 * @throws Exception
 */
func CreateClient () (_result *dingtalkcalendar_1_0.Client, _err error) {
  config := &openapi.Config{}
  config.Protocol = tea.String("https")
  config.RegionId = tea.String("central")
  _result = &dingtalkcalendar_1_0.Client{}
  _result, _err = dingtalkcalendar_1_0.NewClient(config)
  return _result, _err
}

func _main (args []*string) (_err error) {
  client, _err := CreateClient()
  if _err != nil {
    return _err
  }

  patchEventHeaders := &dingtalkcalendar_1_0.PatchEventHeaders{}
  patchEventHeaders.XAcsDingtalkAccessToken = tea.String("<your access token>")
  uiConfigs0 := &dingtalkcalendar_1_0.PatchEventRequestUiConfigs{}
  richTextDescription := &dingtalkcalendar_1_0.PatchEventRequestRichTextDescription{}
  onlineMeetingInfo := &dingtalkcalendar_1_0.PatchEventRequestOnlineMeetingInfo{
    Type: tea.String("dingtalk"),
  }
  reminders0 := &dingtalkcalendar_1_0.PatchEventRequestReminders{
    Method: tea.String("dingtalk"),
    Minutes: tea.Int32(15),
  }
  location := &dingtalkcalendar_1_0.PatchEventRequestLocation{
    DisplayName: tea.String("room 1-2-3"),
  }
  attendees0 := &dingtalkcalendar_1_0.PatchEventRequestAttendees{
    Id: tea.String("iiiP35sJadba8aBSgjrwPRKgiEiF"),
    IsOptional: tea.Bool(false),
  }
  recurrenceRange := &dingtalkcalendar_1_0.PatchEventRequestRecurrenceRange{
    Type: tea.String("endDate"),
    EndDate: tea.String("2021-12-31T10:15:30+08:00"),
    NumberOfOccurrences: tea.Int32(1),
  }
  recurrencePattern := &dingtalkcalendar_1_0.PatchEventRequestRecurrencePattern{
    Type: tea.String("daily"),
    DayOfMonth: tea.Int32(1),
    DaysOfWeek: tea.String("sunday"),
    Index: tea.String("last"),
    Interval: tea.Int32(1),
  }
  recurrence := &dingtalkcalendar_1_0.PatchEventRequestRecurrence{
    Pattern: recurrencePattern,
    Range: recurrenceRange,
  }
  end := &dingtalkcalendar_1_0.PatchEventRequestEnd{
    Date: tea.String("2020-01-02"),
    DateTime: tea.String("2020-01-01T10:15:30+08:00"),
    TimeZone: tea.String("Asia/Shanghai"),
  }
  start := &dingtalkcalendar_1_0.PatchEventRequestStart{
    Date: tea.String("2020-01-01"),
    DateTime: tea.String("2020-01-01T10:15:30+08:00"),
    TimeZone: tea.String("Asia/Shanghai"),
  }
  patchEventRequest := &dingtalkcalendar_1_0.PatchEventRequest{
    Summary: tea.String("some event"),
    Id: tea.String("cnNTbWxxx"),
    Description: tea.String("This is an event"),
    Start: start,
    End: end,
    IsAllDay: tea.Bool(false),
    Recurrence: recurrence,
    Attendees: []*dingtalkcalendar_1_0.PatchEventRequestAttendees{attendees0},
    Location: location,
    Reminders: []*dingtalkcalendar_1_0.PatchEventRequestReminders{reminders0},
    OnlineMeetingInfo: onlineMeetingInfo,
    RichTextDescription: richTextDescription,
    UiConfigs: []*dingtalkcalendar_1_0.PatchEventRequestUiConfigs{uiConfigs0},
  }
  tryErr := func()(_e error) {
    defer func() {
      if r := tea.Recover(recover()); r != nil {
        _e = r
      }
    }()
    _, _err = client.PatchEventWithOptions(tea.String("iiiP35sJaxxx"), tea.String("primary"), tea.String("cnNTbWxxx"), patchEventRequest, patchEventHeaders, &util.RuntimeOptions{})
    if _err != nil {
      return _err
    }

    return nil
  }()

  if tryErr != nil {
    var err = &tea.SDKError{}
    if _t, ok := tryErr.(*tea.SDKError); ok {
      err = _t
    } else {
      err.Message = tea.String(tryErr.Error())
    }
    if !tea.BoolValue(util.Empty(err.Code)) && !tea.BoolValue(util.Empty(err.Message)) {
      // err contains the code and message attributes, which help locate the issue.
    }

  }
  return _err
}

func main() {
  err := _main(tea.StringSlice(os.Args[1:]))
  if err != nil {
    panic(err)
  }
}
```

Node.js

```python theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it
import Util, * as $Util from '@alicloud/tea-util';
import dingtalkcalendar_1_0, * as $dingtalkcalendar_1_0 from '@alicloud/dingtalk/calendar_1_0';
import OpenApi, * as $OpenApi from '@alicloud/openapi-client';
import * as $tea from '@alicloud/tea-typescript';

export default class Client {

  /**
   * Initialize the account client using a token.
   * @return Client
   * @throws Exception
   */
  static createClient(): dingtalkcalendar_1_0 {
    let config = new $OpenApi.Config({ });
    config.protocol = "https";
    config.regionId = "central";
    return new dingtalkcalendar_1_0(config);
  }

  static async main(args: string[]): Promise<void> {
    let client = Client.createClient();
    let patchEventHeaders = new $dingtalkcalendar_1_0.PatchEventHeaders({ });
    patchEventHeaders.xAcsDingtalkAccessToken = "<your access token>";
    let uiConfigs0 = new $dingtalkcalendar_1_0.PatchEventRequestUiConfigs({ });
    let richTextDescription = new $dingtalkcalendar_1_0.PatchEventRequestRichTextDescription({ });
    let onlineMeetingInfo = new $dingtalkcalendar_1_0.PatchEventRequestOnlineMeetingInfo({
      type: "dingtalk",
    });
    let reminders0 = new $dingtalkcalendar_1_0.PatchEventRequestReminders({
      method: "dingtalk",
      minutes: 15,
    });
    let location = new $dingtalkcalendar_1_0.PatchEventRequestLocation({
      displayName: "room 1-2-3",
    });
    let attendees0 = new $dingtalkcalendar_1_0.PatchEventRequestAttendees({
      id: "iiiP35sJadba8aBSgjrwPRKgiEiF",
      isOptional: false,
    });
    let recurrenceRange = new $dingtalkcalendar_1_0.PatchEventRequestRecurrenceRange({
      type: "endDate",
      endDate: "2021-12-31T10:15:30+08:00",
      numberOfOccurrences: 1,
    });
    let recurrencePattern = new $dingtalkcalendar_1_0.PatchEventRequestRecurrencePattern({
      type: "daily",
      dayOfMonth: 1,
      daysOfWeek: "sunday",
      index: "last",
      interval: 1,
    });
    let recurrence = new $dingtalkcalendar_1_0.PatchEventRequestRecurrence({
      pattern: recurrencePattern,
      range: recurrenceRange,
    });
    let end = new $dingtalkcalendar_1_0.PatchEventRequestEnd({
      date: "2020-01-02",
      dateTime: "2020-01-01T10:15:30+08:00",
      timeZone: "Asia/Shanghai",
    });
    let start = new $dingtalkcalendar_1_0.PatchEventRequestStart({
      date: "2020-01-01",
      dateTime: "2020-01-01T10:15:30+08:00",
      timeZone: "Asia/Shanghai",
    });
    let patchEventRequest = new $dingtalkcalendar_1_0.PatchEventRequest({
      summary: "some event",
      id: "cnNTbWxxx",
      description: "This is an event",
      start: start,
      end: end,
      isAllDay: false,
      recurrence: recurrence,
      attendees: [
        attendees0
      ],
      location: location,
      reminders: [
        reminders0
      ],
      onlineMeetingInfo: onlineMeetingInfo,
      richTextDescription: richTextDescription,
      uiConfigs: [
        uiConfigs0
      ],
    });
    try {
      await client.patchEventWithOptions("iiiP35sJaxxx", "primary", "cnNTbWxxx", patchEventRequest, patchEventHeaders, new $Util.RuntimeOptions({ }));
    } catch (err) {
      if (!Util.empty(err.code) && !Util.empty(err.message)) {
        // err contains the code and message attributes, which help locate the issue.
      }

    }    
  }

}

Client.main(process.argv.slice(2));
```

C#

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
// This file is auto-generated, don't edit it. Thanks.

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;

using Tea;
using Tea.Utils;

namespace AlibabaCloud.SDK.Sample
{
    public class Sample 
    {

        /**
         * Initialize the account client using a token.
         * @return Client
         * @throws Exception
         */
        public static AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client CreateClient()
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config();
            config.Protocol = "https";
            config.RegionId = "central";
            return new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client(config);
        }

        public static void Main(string[] args)
        {
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Client client = CreateClient();
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventHeaders patchEventHeaders = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventHeaders();
            patchEventHeaders.XAcsDingtalkAccessToken = "<your access token>";
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestUiConfigs uiConfigs0 = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestUiConfigs();
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRichTextDescription richTextDescription = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRichTextDescription();
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestOnlineMeetingInfo onlineMeetingInfo = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestOnlineMeetingInfo
            {
                Type = "dingtalk",
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestReminders reminders0 = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestReminders
            {
                Method = "dingtalk",
                Minutes = 15,
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestLocation location = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestLocation
            {
                DisplayName = "room 1-2-3",
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestAttendees attendees0 = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestAttendees
            {
                Id = "iiiP35sJadba8aBSgjrwPRKgiEiF",
                IsOptional = false,
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence.PatchEventRequestRecurrenceRange recurrenceRange = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence.PatchEventRequestRecurrenceRange
            {
                Type = "endDate",
                EndDate = "2021-12-31T10:15:30+08:00",
                NumberOfOccurrences = 1,
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence.PatchEventRequestRecurrencePattern recurrencePattern = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence.PatchEventRequestRecurrencePattern
            {
                Type = "daily",
                DayOfMonth = 1,
                DaysOfWeek = "sunday",
                Index = "last",
                Interval = 1,
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence recurrence = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestRecurrence
            {
                Pattern = recurrencePattern,
                Range = recurrenceRange,
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestEnd end = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestEnd
            {
                Date = "2020-01-02",
                DateTime = "2020-01-01T10:15:30+08:00",
                TimeZone = "Asia/Shanghai",
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestStart start = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestStart
            {
                Date = "2020-01-01",
                DateTime = "2020-01-01T10:15:30+08:00",
                TimeZone = "Asia/Shanghai",
            };
            AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest patchEventRequest = new AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest
            {
                Summary = "some event",
                Id = "cnNTbWxxx",
                Description = "This is an event",
                Start = start,
                End = end,
                IsAllDay = false,
                Recurrence = recurrence,
                Attendees = new List<AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestAttendees>
                {
                    attendees0
                },
                Location = location,
                Reminders = new List<AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestReminders>
                {
                    reminders0
                },
                OnlineMeetingInfo = onlineMeetingInfo,
                RichTextDescription = richTextDescription,
                UiConfigs = new List<AlibabaCloud.SDK.Dingtalkcalendar_1_0.Models.PatchEventRequest.PatchEventRequestUiConfigs>
                {
                    uiConfigs0
                },
            };
            try
            {
                client.PatchEventWithOptions("iiiP35sJaxxx", "primary", "cnNTbWxxx", patchEventRequest, patchEventHeaders, new AlibabaCloud.TeaUtil.Models.RuntimeOptions());
            }
            catch (TeaException err)
            {
                if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message))
                {
                    // err contains the code and message attributes, which help locate the issue.
                }
            }
            catch (Exception _err)
            {
                TeaException err = new TeaException(new Dictionary<string, object>
                {
                    { "message", _err.Message }
                });
                if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message))
                {
                    // err contains the code and message attributes, which help locate the issue.
                }
            }
        }

    }
}
```

## Response

### Response body

| Name                | Type            | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| ------------------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| id                  | String          | The event ID.                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| summary             | String          | The event title.                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| description         | String          | The event description.                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| start               | Object          | The event start time.                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| date                | String          | The event start date in the format `yyyy-MM-dd`.       - Required for an all-day event. - Must be empty for a non-all-day event.                                                                                                                                                                                                                                                                                                                                 |
| dateTime            | String          | The event start time in ISO-8601 date-time format.       - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                                               |
| timeZone            | String          | The time zone of the event start time, in TZ database name format.       - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                               |
| end                 | Object          | The event end time.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| date                | String          | The event end date in the format `yyyy-MM-dd`.       - Required for an all-day event. - Must be empty for a non-all-day event.                                                                                                                                                                                                                                                                                                                                   |
| dateTime            | String          | The event end time in ISO-8601 date-time format.       - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                                                                                                 |
| timeZone            | String          | The time zone of the event end time. It must be the same as the time zone of the start time, in TZ database name format.       - Must be empty for an all-day event. - Required for a non-all-day event.                                                                                                                                                                                                                                                         |
| isAllDay            | Boolean         | Whether the event is an all-day event.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                                       |
| recurrence          | Object          | The event recurrence rule.                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| pattern             | Object          | The recurrence pattern.                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| type                | String          | The recurrence pattern type.   - **daily**: Repeats every **interval** days. - **weekly**: Repeats on **daysOfWeek** every **interval** weeks. - **absoluteMonthly**: Repeats on day **dayOfMonth** every **interval** months. - **relativeMonthly**: Repeats on **daysOfWeek** of the **index** week every **interval** months. - **absoluteYearly**: Repeats every **interval** years.                                                                         |
| dayOfMonth          | Integer         | Specifies the day of the month when the recurrence pattern **type** is **absoluteMonthly**.                                                                                                                                                                                                                                                                                                                                                                      |
| daysOfWeek          | String          | Specifies the day of the week in lowercase English. Separate multiple values with commas.                                                                                                                                                                                                                                                                                                                                                                        |
| index               | String          | Specifies the week of the month when the `type` is `relativeMonthly`.   - **first**: The first week. - **second**: The second week. - **third**: The third week. - **fourth**: The fourth week. - **last**: The last week.                                                                                                                                                                                                                                       |
| interval            | Integer         | The recurrence interval. The unit varies depending on the `type`.      For example:   - When **type** is **daily**, it represents an interval of N days. - When **type** is **absoluteYearly**, it represents an interval of N years.                                                                                                                                                                                                                            |
| firstDayOfWeek      | String          | The first day of the week. Valid values: sunday, monday, tuesday, wednesday, thursday, friday, saturday. Default: "sunday".                                                                                                                                                                                                                                                                                                                                      |
| range               | Object          | The recurrence range.                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| type                | String          | The recurrence range type.   - **noEnd**: Never ends. - **endDate**: Ends on a specified date. - **numbered**: Ends after a specified number of recurrences.                                                                                                                                                                                                                                                                                                     |
| endDate             | String          | The recurrence end time.                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| numberOfOccurrences | Integer         | The number of recurrences.                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| attendees           | Array           | The list of event attendees.                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| id                  | String          | The user's unionId.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| displayName         | String          | The username.                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| responseStatus      | String          | The reply status.                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| self                | Boolean         | Whether the user is the currently signed-in user.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                            |
| isOptional          | Boolean         | Whether the attendee is optional.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                                            |
| organizer           | Object          | The event organizer.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| id                  | String          | The user's unionId.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| displayName         | String          | The username.                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| responseStatus      | String          | The reply status.                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| self                | Boolean         | Whether the user is the currently signed-in user.   - **true**: Yes. - **false**: No.                                                                                                                                                                                                                                                                                                                                                                            |
| location            | Object          | The event location information.                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| displayName         | String          | The display name of the event location.                                                                                                                                                                                                                                                                                                                                                                                                                          |
| meetingRooms        | Array of String | The meeting room information.                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| reminders           | Array           | The event reminders.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| method              | String          | The reminder method.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| minutes             | String          | Sends the reminder N minutes before the event starts.                                                                                                                                                                                                                                                                                                                                                                                                            |
| createTime          | String          | The created time.                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| updateTime          | String          | The update time.                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| onlineMeetingInfo   | Object          | The online meeting information.                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| type                | String          | The online meeting type.   - **dingtalk**: DingTalk video meeting.                                                                                                                                                                                                                                                                                                                                                                                               |
| conferenceId        | String          | The meeting ID.                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| url                 | String          | The URL for joining the meeting.                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| richTextDescription | Object          | The rich text field.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| text                | String          | The rich text value.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| uiConfigs           | Array           | UI configurations that control the display of components on the event details page.                                                                                                                                                                                                                                                                                                                                                                              |
| uiName              | String          | The component name. Valid values (continuously updated):   - **updateEventButton**: Edit Event button. - **deleteEventButton**: Delete Event button. - **transferEventButton**: Transfer Event button. - **attendee**: Attendee area. - **comment**: Event comment area.                                                                                                                                                                                         |
| uiStatus            | String          | The component status. Valid values:   - **hide**: Hidden. - **disable**: Disabled (supported on the new details page; not supported on earlier versions, where the component is hidden instead).      For button components: cannot be clicked.   For area components: cannot be interacted with. For example, if the comment area is set to disable, comments cannot be written, but existing comments remain visible. - **enable**: Available (default state). |

### Response body example

```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
HTTP/1.1 200 OK
Content-Type:application/json

{
  "id" : "iiiP35sJadba8aBSgjrwPRKgiEiF",
  "summary" : "some event",
  "description" : "something about this event",
  "start" : {
    "date" : "2020-01-01",
    "dateTime" : "2020-01-01T10:15:30+08:00",
    "timeZone" : "Asia/Shanghai"
  },
  "end" : {
    "date" : "2020-01-01",
    "dateTime" : "2020-01-01T10:15:30+08:00",
    "timeZone" : "Asia/Shanghai"
  },
  "isAllDay" : false,
  "recurrence" : {
    "pattern" : {
      "type" : "daily",
      "dayOfMonth" : 14,
      "daysOfWeek" : "sunday",
      "index" : "first",
      "interval" : 1
    },
    "range" : {
      "type" : "noEnd",
      "endDate" : "2020-01-01T10:15:30+08:00",
      "numberOfOccurrences" : 5
    }
  },
  "attendees" : [ {
    "id" : "iiiP35sJadba8aBSgjrwPRKgiEiF",
    "displayName" : "jack",
    "responseStatus" : "accepted",
    "self" : false,
    "isOptional" : false
  } ],
  "organizer" : {
    "id" : "iiiP35sJadba8aBSgjrwPRKgiEiF",
    "displayName" : "tony",
    "responseStatus" : "accepted",
    "self" : false
  },
  "location" : {
    "displayName" : "room 1-2-3"
  },
  "reminders" : [ {
    "method" : "dingtalk",
    "minutes" : "15"
  } ],
  "createTime" : "2020-01-01T10:15:30+08:00",
  "updateTime" : "2020-01-01T10:15:30+08:00"
}
```

### Error codes

If an error is returned when you call this API, look up the solution in the [Global error codes](/open/development/server-api-error-codes-1) document based on the error message.

| HttpCode | Error code            | Error message                                              | Description                                            |
| -------- | --------------------- | ---------------------------------------------------------- | ------------------------------------------------------ |
| 400      | invalidParameter      | forwardErrorMessage                                        | Invalid parameter.                                     |
| 400      | invalidParameter      | CalendarId cannot be blank                                 | The calendar ID cannot be empty.                       |
| 400      | invalidParameter      | Event must be provided.                                    | The event cannot be empty.                             |
| 400      | invalidParameter      | Event id summary cannot be blank                           | The event ID cannot be empty.                          |
| 400      | invalidParameter      | Recurrence range numberOfOccurrences must between \[1, 99] | numberOfOccurrences must be within the range \[1, 99]. |
| 400      | invalidParameter      | Recurrence interval must between \[1, 365]                 | interval must be within the range \[1, 365].           |
| 400      | invalidParameter      | Meeting room invalid                                       | The meeting room is not available.                     |
| 400      | idempotencyProcessing | Idempotency processing                                     | The idempotent request is being processed.             |
| 404      | itemNotFound          | forwardErrorMessage                                        | The specified event cannot be found.                   |
