Update System CRM Activity crm.activity.update

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"id":999,"fields":{"RESPONSIBLE_ID":1,"DESCRIPTION":"New description of the activity"},"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/crm.activity.update
        

// This snippet is an ES module: top-level await requires type="module" or a bundler.
        // $b24 is an already-initialized SDK instance (see the SDK "Get started" guide).
        import { Text } from '@bitrix24/b24jssdk'
        import type { B24Frame } from '@bitrix24/b24jssdk'
        
        declare const $b24: B24Frame
        
        try {
          const response = await $b24.actions.v2.call.make<boolean>({
            method: 'crm.activity.update',
            params: {
              id: 999,
              fields: {
                RESPONSIBLE_ID: 1,
                DESCRIPTION: 'New activity description',
              },
            },
            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('Activity updated successfully:', result)
          }
        } catch (error) {
          // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
          console.error(error)
        }
        

<!-- Load the SDK (UMD build); it is exposed as the global B24Js -->
        <script src="https://unpkg.com/@bitrix24/b24jssdk@1/dist/umd/index.min.js"></script>
        <script>
          async function updateActivity() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'crm.activity.update',
                params: {
                  id: 999,
                  fields: {
                    RESPONSIBLE_ID: 1,
                    DESCRIPTION: 'New activity description',
                  },
                },
                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('Activity updated successfully:', result)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', updateActivity)
        </script>
        

        from datetime import datetime, timedelta
        
        from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.crm.activity.update(
                bitrix_id=999,
                fields={
                    "SUBJECT": "Updated follow-up",
                    "DEADLINE": (datetime.now() + timedelta(days=1)).isoformat(timespec="seconds"),
                    "DESCRIPTION": "Updated activity description",
                    "RESPONSIBLE_ID": 1,
                    "COMPLETED": "N",
                },
            ).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(
                    'crm.activity.update',
                    [
                        'id' => 999,
                        'fields' => [
                            "RESPONSIBLE_ID" => 1,
                            "DESCRIPTION" => "New description of the activity"
                        ]
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            // Your logic for processing data
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error updating activity: ' . $e->getMessage();
        }
        

BX24.callMethod(
            'crm.activity.update',
            {
                id: 999,
                fields: {
                    "RESPONSIBLE_ID": 1, 
                    "DESCRIPTION": "New description of the activity"
                }
            },
            result => {
                if (result.error()) {
                    console.error(result.error());
                } else {
                    console.dir(result.data());
                }
            }
        );
        

require_once('crest.php');
        
        $result = CRest::call(
            'crm.activity.update',
            [
                'id' => 999,
                'fields' => [
                    'RESPONSIBLE_ID' => 1,
                    'DESCRIPTION' => 'New description of the activity'
                ]
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';
        

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "crm.activity.update", b24.Params{
        	"id": 999,
        	"fields": b24.Params{
        		"RESPONSIBLE_ID": 1,
        		"DESCRIPTION":    "New description of the activity",
        	},
        })
        if err != nil {
        	return fmt.Errorf("crm.activity.update: %w", err)
        }
        
        var ok bool
        if err := json.Unmarshal(res.Result, &ok); err != nil {
        	return fmt.Errorf("parse response: %w", err)
        }
        fmt.Println("done:", ok)