Unregister Event Handler event.unbind

// 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 EventUnbindResult = {
          count: number
        }
        
        try {
          const response = await $b24.actions.v2.call.make<EventUnbindResult>({
            method: 'event.unbind',
            params: {
              event: 'ONCRMLEADADD',
              handler: 'https://www.my-domain.com/handler/',
              auth_type: 15,
            },
            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('Unbound handlers count:', result.count)
          }
        } 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 unbindEvent() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'event.unbind',
                params: {
                  event: 'ONCRMLEADADD',
                  handler: 'https://www.my-domain.com/handler/',
                  auth_type: 15,
                },
                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('Unbound handlers count:', result.count)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', unbindEvent)
        </script>
        

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.event.unbind(
                event="ONCRMLEADADD",
                handler="https://www.my-domain.com/handler/",
                auth_type=15,
            ).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 {
            $eventCode = 'your_event_code'; // Replace with your actual event code
            $handlerUrl = 'https://your.handler.url'; // Replace with your actual handler URL
            $userId = null; // Replace with your actual user ID or leave as null
            $result = $serviceBuilder
                ->getMainScope()
                ->event()
                ->unbind($eventCode, $handlerUrl, $userId);
            print($result->getUnbindedHandlersCount());
        } catch (Throwable $e) {
            print('Error: ' . $e->getMessage());
        }
        

require_once('crest.php');
        
        $result = CRest::call(
            'event.unbind',
            [
                'EVENT' => 'ONCRMLEADADD',
                'HANDLER' => 'https://www.my-domain.com/handler/',
                'AUTH_TYPE' => 15
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';