Create a calendar event from an e-mail mail.message.createcalendarevent

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"messageId":15,"dateFrom":"2026-04-15 10:00:00","dateTo":"2026-04-15 11:00:00","name":"Meeting regarding the contract","auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/api/mail.message.createcalendarevent
        

// This snippet is an ES module: top-level await requires type="module" or a bundler.
        // $b24 is an already-initialized SDK instance (see the SDK "Get started" guide).
        import { Text } from '@bitrix24/b24jssdk'
        import type { B24Frame } from '@bitrix24/b24jssdk'
        
        declare const $b24: B24Frame
        
        // Shape of the payload returned in result (match the "response handling" section of the page)
        type CreateCalendarEventResult = {
          success: boolean
          eventId: number
          messageId: number
        }
        
        try {
          const response = await $b24.actions.v3.call.make<CreateCalendarEventResult>({
            method: 'mail.message.createcalendarevent',
            params: {
              messageId: 15,
              dateFrom: '2026-04-15 10:00:00',
              dateTo: '2026-04-15 11:00:00',
              name: 'Contract meeting',
            },
            requestId: Text.getUuidRfc4122()
          })
        
          // The payload is available only on a successful response
          if (!response.isSuccess) {
            console.error(response.getErrorMessages().join('; '))
          } else {
            const result = response.getData()!.result
            console.info('Created calendar event ID:', result.eventId, 'for message ID:', result.messageId)
          }
        } catch (error) {
          // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
          console.error(error)
        }
        

<!-- Load the SDK (UMD build); it is exposed as the global B24Js -->
        <script src="https://unpkg.com/@bitrix24/b24jssdk@1/dist/umd/index.min.js"></script>
        <script>
          async function createCalendarEvent() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v3.call.make({
                method: 'mail.message.createcalendarevent',
                params: {
                  messageId: 15,
                  dateFrom: '2026-04-15 10:00:00',
                  dateTo: '2026-04-15 11:00:00',
                  name: 'Contract meeting',
                },
                requestId: B24Js.Text.getUuidRfc4122()
              })
        
              // The payload is available only on a successful response
              if (!response.isSuccess) {
                console.error(response.getErrorMessages().join('; '))
                return
              }
        
              const result = response.getData().result
              console.info('Created calendar event ID:', result.eventId, 'for message ID:', result.messageId)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', createCalendarEvent)
        </script>
        

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.mail.message.createcalendarevent(
                message_id=15,
                date_from='2026-04-15 10:00:00',
                date_to='2026-04-15 11:00:00',
                name='Contract meeting',
            ).response
            result = bitrix_response.result
            print(result)
        except BitrixAPIError as error:
            print(
                "Bitrix API error",
                f"error: {error.error}",
                f"error_description: {error.error_description}",
                sep="\n",
            )
        except BitrixSDKException as error:
            print(f"Bitrix SDK error: {error.message}")
        except Exception as error:
            print(f"Unexpected error: {error}")
        

try {
            $response = $b24Service
                ->core
                ->call(
                    'mail.message.createcalendarevent',
                    [
                        'messageId' => 15,
                        'dateFrom' => '2026-04-15 10:00:00',
                        'dateTo' => '2026-04-15 11:00:00',
                        'name' => 'Meeting regarding the contract'
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error: ' . $e->getMessage();
        }
        

BX24.callMethod(
            'mail.message.createcalendarevent',
            {
                messageId: 15,
                dateFrom: '2026-04-15 10:00:00',
                dateTo: '2026-04-15 11:00:00',
                name: 'Meeting regarding the contract'
            },
            function(result){
                console.info(result.data());
                console.log(result);
            }
        );
        

require_once('crest.php');
        
        $result = CRest::call(
            'mail.message.createcalendarevent',
            [
                'messageId' => 15,
                'dateFrom' => '2026-04-15 10:00:00',
                'dateTo' => '2026-04-15 11:00:00',
                'name' => 'Meeting regarding the contract'
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';
        

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "mail.message.createcalendarevent", b24.Params{
        	"messageId": 15,
        	"dateFrom":  "2026-04-15 10:00:00",
        	"dateTo":    "2026-04-15 11:00:00",
        	"name":      "Meeting regarding the contract",
        })
        if err != nil {
        	return fmt.Errorf("mail.message.createcalendarevent: %w", err)
        }
        
        var item struct {
        	Success   bool   `json:"success"`
        	EventID   b24.ID `json:"eventId"`
        	MessageID b24.ID `json:"messageId"`
        }
        if err := json.Unmarshal(res.Result, &item); err != nil {
        	return fmt.Errorf("parse response: %w", err)
        }
        fmt.Println(item.Success, item.EventID)