Update Nodes of the Block landing.block.updatenodes

If you are developing integrations for Bitrix24 using AI tools (Codex, Claude Code, Cursor), connect to the MCP server so that the assistant can utilize the official REST documentation.

Scope: landing

Who can execute the method: a user with "edit" access permission for the site

The method landing.block.updatenodes updates the nodes of a block in the draft of a page. If the page is already published, changes will be visible to visitors after re-publishing through the interface or using the method landing.landing.publication.

Method Parameters

Required parameters are marked with *

Name `type`	Description
scope `string`	Internal scope of the landing. It is not related to the REST scope `landing` in the method name. The value of `scope` must correspond to the type of site (detailed description)
lid* `integer`	Identifier of the page. The page identifier can be obtained using the method landing.landing.getList
block* `integer`	Identifier of the block in the version of the page for editing. The block identifier can be obtained using the method landing.block.getlist with the parameter `params.edit_mode = 1`. If you pass the block identifier from the published version of the page, the method may return an error
data* `object`	Set of changes for the block nodes and component parameters available for editing (detailed description)
additional `object`	Additional save parameters (detailed description)
preventHistory `boolean`	If set to `true`, the method will not add the action to the page change history. Default is `false`

Parameter data

Key
type

Description

string | object | array

The key must match the selector from the block manifest.

For repeating elements, you can specify the position using @, for example, .landing-block-node-text@1. Positions are numbered starting from 0.

If the position is not specified, the behavior depends on the value format:

for node values, the method changes the first found element,
for values of the form {attrs: {...}} with a regular selector, the method updates all found elements,
for component selectors with :, for example, bitrix:catalog.section, the position is not used.

The value format depends on the node type (detailed description)

Value Formats in data

Node Type	Example Value
`text`	`'New block text'` or `{text: 'New block text'}`
`img`	`{src: 'https://example.com/a.jpg', alt: 'Banner', src2x: 'https://example.com/a@2x.jpg'}`
`link`	`{text: 'Read more', href: 'https://example.com', target: '_blank', query: 'utm_source=test'}`
`icon`	`['fa', 'fa-telegram']`
`embed`	`{src: '//youtube.com/embed/123', source: 'https://youtube.com/watch?v=123'}`

The formats for other node types are described in the article Node Types.

Additional features of the formats:

link supports fields text, href, query, target, skipContent, and attrs
in link.attrs, only the attributes data-embed and data-url are saved
if link.text is not provided, the method will update href, target, and allowed attributes, but will not change the link text
if a link object is provided without target, the current value of target will be cleared
if link.attrs is not provided or an empty object is passed, the current data-embed and data-url will be removed
img additionally supports fields src2x, id, id2x, isLazy, lazyOrigSrc, lazyOrigSrc2x, lazyOrigSrcset, lazyOrigStyle
for img, it is recommended to pass the full image object. If src is not provided, the current image address will be cleared. If src2x is not provided, the value for the retina version will be cleared
for img, addresses src and src2x starting with http:// will be replaced with https://
for img, lazy loading is enabled only with the value isLazy = 'Y'
embed additionally supports fields preview and ratio
for embed, it is recommended to pass the full object. If preview is not provided, the current preview will be removed
for embed, the ratio field is applied only with a new src

If a value of the form {attrs: {...}} is passed, the method behaves differently depending on the selector:

for a regular selector, it updates the node attributes,
for a component selector with :, for example, bitrix:catalog.section, it updates only those component parameters that are available for editing in the block manifest.

Selectors not present in the block manifest are ignored by the method. The same applies to component parameters that are not among those available for editing.

Parameter additional

Name
type

Description

appendMenu
boolean

Adds new items to the current menu instead of completely replacing it. Works only for blocks that have a menu section described in the manifest.

Default is false

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

PHP

BX24.js

PHP CRest

curl -X POST \
          -H "Content-Type: application/json" \
          -d '{
            "lid": 311,
            "block": 6058,
            "data": {
              ".landing-block-node-text": "New block text",
              ".landing-block-node-img": {
                "src": "https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg",
                "alt": "New banner"
              },
              ".landing-block-node-link": {
                "text": "Read more",
                "href": "https://www.bitrix24.com",
                "target": "_blank"
              },
              ".landing-block-node-icon": [
                "fa",
                "fa-telegram"
              ],
              ".landing-block-node-embed": {
                "src": "//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0",
                "source": "https://www.youtube.com/watch?v=q4d8g9Dn3ww"
              }
            }
          }' \
          "https://**put.your-domain-here**/rest/**user_id**/**webhook_code**/landing.block.updatenodes.json"

curl -X POST \
          -H "Content-Type: application/json" \
          -d '{
            "lid": 311,
            "block": 6058,
            "data": {
              ".landing-block-node-text": "New block text",
              ".landing-block-node-img": {
                "src": "https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg",
                "alt": "New banner"
              },
              ".landing-block-node-link": {
                "text": "Read more",
                "href": "https://www.bitrix24.com",
                "target": "_blank"
              },
              ".landing-block-node-icon": [
                "fa",
                "fa-telegram"
              ],
              ".landing-block-node-embed": {
                "src": "//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0",
                "source": "https://www.youtube.com/watch?v=q4d8g9Dn3ww"
              }
            },
            "auth": "**put_access_token_here**"
          }' \
          "https://**put.your-domain-here**/rest/landing.block.updatenodes.json"

try
        {
        	const response = await $b24.callMethod(
        		'landing.block.updatenodes',
        		{
        			lid: 311,
        			block: 6058,
        			data: {
        				'.landing-block-node-text': 'New block text',
        				'.landing-block-node-img': {
        					src: 'https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg',
        					alt: 'New banner'
        				},
        				'.landing-block-node-link': {
        					text: 'Read more',
        					href: 'https://www.bitrix24.com',
        					target: '_blank'
        				},
        				'.landing-block-node-icon': ['fa', 'fa-telegram'],
        				'.landing-block-node-embed': {
        					src: '//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0',
        					source: 'https://www.youtube.com/watch?v=q4d8g9Dn3ww'
        				}
        			}
        		}
        	);
        
        	const result = response.getData().result;
        	console.info(result);
        }
        catch (error)
        {
        	console.error(error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'landing.block.updatenodes',
                    [
                        'lid' => 311,
                        'block' => 6058,
                        'data' => [
                            '.landing-block-node-text' => 'New block text',
                            '.landing-block-node-img' => [
                                'src' => 'https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg',
                                'alt' => 'New banner',
                            ],
                            '.landing-block-node-link' => [
                                'text' => 'Read more',
                                'href' => 'https://www.bitrix24.com',
                                'target' => '_blank',
                            ],
                            '.landing-block-node-icon' => ['fa', 'fa-telegram'],
                            '.landing-block-node-embed' => [
                                'src' => '//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0',
                                'source' => 'https://www.youtube.com/watch?v=q4d8g9Dn3ww',
                            ],
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . var_export($result, true);
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error updating block nodes: ' . $e->getMessage();
        }

BX24.callMethod(
            'landing.block.updatenodes',
            {
                lid: 311,
                block: 6058,
                data: {
                    '.landing-block-node-text': 'New block text',
                    '.landing-block-node-img': {
                        src: 'https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg',
                        alt: 'New banner'
                    },
                    '.landing-block-node-link': {
                        text: 'Read more',
                        href: 'https://www.bitrix24.com',
                        target: '_blank'
                    },
                    '.landing-block-node-icon': ['fa', 'fa-telegram'],
                    '.landing-block-node-embed': {
                        src: '//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0',
                        source: 'https://www.youtube.com/watch?v=q4d8g9Dn3ww'
                    }
                }
            },
            function(result)
            {
                if (result.error())
                {
                    console.error(result.error());
                }
                else
                {
                    console.info(result.data());
                }
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'landing.block.updatenodes',
            [
                'lid' => 311,
                'block' => 6058,
                'data' => [
                    '.landing-block-node-text' => 'New block text',
                    '.landing-block-node-img' => [
                        'src' => 'https://cdn.bitrix24.site/bitrix/images/landing/business/1920x1280/img12.jpg',
                        'alt' => 'New banner',
                    ],
                    '.landing-block-node-link' => [
                        'text' => 'Read more',
                        'href' => 'https://www.bitrix24.com',
                        'target' => '_blank',
                    ],
                    '.landing-block-node-icon' => ['fa', 'fa-telegram'],
                    '.landing-block-node-embed' => [
                        'src' => '//www.youtube.com/embed/q4d8g9Dn3ww?autoplay=1&controls=0&loop=1&mute=1&rel=0',
                        'source' => 'https://www.youtube.com/watch?v=q4d8g9Dn3ww',
                    ],
                ],
            ]
        );
        
        if (isset($result['error']))
        {
            echo 'Error: ' . $result['error_description'];
        }
        else
        {
            echo '<pre>';
            print_r($result['result']);
            echo '</pre>';
        }

Updating Component Parameters

Some blocks contain a component, such as a catalog. In this case, the method can only change those component parameters that are available for editing in the block manifest.

To understand which parameters can be changed, first obtain the block manifest using the method landing.block.getmanifest and check the attrs section for the desired component selector.

After that, pass the component selector and an object with the key attrs in data:

BX24.callMethod(
            'landing.block.updatenodes',
            {
                lid: 5597,
                block: 44131,
                data: {
                    'bitrix:catalog.section': {
                        attrs: {
                            MESS_BTN_BUY: 'Buy'
                        }
                    }
                }
            }
        );

Response Handling

HTTP Status: 200

{
            "result": true,
            "time": {
                "start": 1774442460,
                "finish": 1774442460.28751,
                "duration": 0.2875099182128906,
                "processing": 0,
                "date_start": "2026-03-25T11:01:00+01:00",
                "date_finish": "2026-03-25T11:01:00+01:00",
                "operating_reset_at": 1774443060,
                "operating": 0.09410285949707031
            }
        }

Returned Data

Name `type`	Description
result `boolean`	Result of the block update. Upon successful execution, the method returns `true`
time `time`	Information about the request execution time

Error Handling

HTTP Status: 400

{
            "error": "NODES_NOT_FOUND",
            "error_description": "No nodes found for modification"
        }

Name `type`	Description
error `string`	String error code. It may consist of digits, Latin letters, and underscores
error_description `error_description`	Textual description of the error. The description is not intended to be shown to the end user in its raw form

Possible Error Codes

Code	Description
`MISSING_PARAMS`	Required parameter `lid`, `block`, or `data` is missing
`TYPE_ERROR`	Incorrect type passed in parameter `lid`, `block`, `data`, `additional`, or `preventHistory`
`LANDING_NOT_EXIST`	Page with identifier `lid` not found or not accessible to the current user
`BLOCK_NOT_FOUND`	Block with identifier `block` not found on page `lid` or not accessible in the version of the page for editing
`ACCESS_DENIED`	Insufficient permissions to edit the site
`NODES_NOT_FOUND`	No changes passed for the block in the `data` parameter
`INCORRECT_AFFECTED`	The server could not confirm the saving of the modified HTML after updating the nodes with additional verification enabled

Statuses and System Error Codes

HTTP Status: 20x, 40x, 50x

The errors described below may occur when calling any method.

Status	Code Error Message	Description
`500`	`INTERNAL_SERVER_ERROR` Internal server error	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`500`	`ERROR_UNEXPECTED_ANSWER` Server returned an unexpected response	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`503`	`QUERY_LIMIT_EXCEEDED` Too many requests	The request intensity limit has been exceeded
`405`	`ERROR_BATCH_METHOD_NOT_ALLOWED` Method is not allowed for batch usage	The current method is not permitted for calls using batch
`400`	`ERROR_BATCH_LENGTH_EXCEEDED` Max batch length exceeded	The maximum length of parameters passed to the batch method has been exceeded
`401`	`NO_AUTH_FOUND` Wrong authorization data	Invalid access token or webhook code
`400`	`INVALID_REQUEST` Https required	The HTTPS protocol is required for method calls
`503`	`OVERLOAD_LIMIT` REST API is blocked due to overload	The REST API is blocked due to overload. This is a manual individual block; please contact Bitrix24 technical support to lift it
`403`	`ACCESS_DENIED` REST API is available only on commercial plans	The REST API is only available on commercial plans
`403`	`INVALID_CREDENTIALS` Invalid request credentials	The user associated with the access token or webhook used to call the method lacks the necessary permissions
`404`	`ERROR_MANIFEST_IS_NOT_AVAILABLE` Manifest is not available	The manifest is not available
`403`	`insufficient_scope` The request requires higher privileges than provided by the webhook token	The request requires higher privileges than those provided by the webhook token
`401`	`expired_token` The access token provided has expired	The provided access token has expired
`403`	`user_access_error` The user does not have access to the application	The user does not have access to the application. This means that the application is installed, but the portal administrator has restricted access to this application to specific users only
`500`	`PORTAL_DELETED` Portal was deleted	The public part of the site is closed. To open the public part of the site on an on-premise installation, disable the "Temporary closure of the public part of the site" option. Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site

Continue Learning

Remove Block Card

Update Block Node Attributes

Update Nodes of the Block landing.block.updatenodes

Method ParametersMethod Parameters

Parameter dataParameter data

Value Formats in dataValue Formats in data

Parameter additionalParameter additional

Code ExamplesCode Examples

Updating Component ParametersUpdating Component Parameters

Response HandlingResponse Handling

Returned DataReturned Data

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

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