OnOpenLineMessageDelete Chat Message Deletion Event

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: imopenlines

Who can subscribe: any user

The OnOpenLineMessageDelete event triggers when a message is deleted in an open line chat.

Subscribe to the event can only be done through the application. Only those events intended for the connector added by the application can be received in the handler.

Events will not be sent to the application until the installation is complete. Check the application installation

What the Handler Receives

Data is transmitted as a POST request

{
            "event": "ONOPENLINEMESSAGEDELETE",
            "eventId": 1,
            "data": {
                "CONNECTOR": "livechat",
                "LINE": 128,
                "DATA": [
                    {
                        "im": {
                            "chat_id": 1024,
                            "message_id": 2056
                        },
                        "message": {
                            "id": 2056
                        },
                        "chat": {
                            "id": 1024
                        }
                    }
                ]
            },
            "ts": 1714649632,
            "auth": {
                "access_token": "s6p6eclrvim6da22ft9ch94ekreb52lv",
                "expires_in": 3600,
                "scope": "imopenlines",
                "domain": "some-domain.bitrix24.com",
                "server_endpoint": "https://oauth.bitrix.info/rest/",
                "status": "F",
                "client_endpoint": "https://some-domain.bitrix24.com/rest/",
                "member_id": "a223c6b3710f85df22e9377d6c4f7553",
                "refresh_token": "4s386p3q0tr8dy89xvmt96234v3dljg8",
                "application_token": "51856fefc120afa4b628cc82d3935cce"
            }
        }
        

Required parameters are marked with *

parameter
type

Description

event*
string

Symbolic code of the event.

In this case — ONOPENLINEMESSAGEDELETE

eventId*
integer

Event identifier

data*
object

An object containing event data.

The structure is described below

ts*
timestamp

Date and time of the event sent from the event queue

auth*
object

Object containing authorization parameters and information about the account where the event occurred.

The structure is described below

Parameter data

parameter
type

Description

CONNECTOR*
string

Connector identifier

LINE*
integer

Identifier of the open line

DATA*
array

An array of objects with deleted message data.

The object structure is described below

Array Element DATA

Each array element DATA is an object with the following structure:

parameter
type

Description

im*
object

An object with information about a deleted message in a chat.

The structure is described below

message*
object

An object with information about a message.

The structure is described below

chat*
object

An object with information about a chat.

The structure is described below

Parameter im

parameter
type

Description

chat_id*
integer

Identifier of the chat

message_id*
integer

Identifier of the message

Parameter message

parameter
type

Description

id*
integer

Identifier of the message

Parameter chat

parameter
type

Description

id*
integer

Identifier of the chat

Parameter auth

Required parameters are marked with *

Name
type

Description

access_token
string

Authorization token OAuth 2.0

expires_in
integer

Time in seconds until the token expires

scope*
string

Scope under which the event occurred

domain*
string

Address of Bitrix24 where the event occurred

server_endpoint*
string

Address of the Bitrix24 authorization server needed to refresh OAuth 2.0 tokens

status*
string

Status of the application that subscribed to this event:

  • Llocal application
  • Ffree mass-market application
  • D — demo version of a mass-market application
  • T — trial version of a mass-market application, time-limited
  • P — paid mass-market application

client_endpoint*
string

Common path for REST API method calls for Bitrix24 where the event occurred

member_id*
string

Identifier of Bitrix24 where the event occurred

refresh_token
string

Token for extending authorization OAuth 2.0

application_token*
string

Token for secure event handling

Authorization tokens are not always passed to the event handler. If the hit that initiated the event could not be linked to a specific Bitrix24 user, the tokens are not passed. Always check the contents of the auth key in the code.

It is recommended to store tokens obtained earlier during the application installation. Use them when working with the application interface in the form of embeds, widgets, and so on.

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