Overview of Events When Working with Comments

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.

Events allow applications to respond to changes in near real-time: receiving notifications about the addition, update, or deletion of timeline comments.

Detailed information on working with events is described in the article Concept and Benefits of Event Processing.

Quick navigation: all events

How to Receive Events

You can subscribe to timeline comment events through:

An example of a handler code for the event is described in the article How to Test Your Handler for Processing Bitrix24 Events.

Availability of Servers for Sending and Receiving Events

The event handler server must be accessible from the outside. To configure the accessibility of the event handler server and application, refer to the article Required network access.

For cloud Bitrix24, no additional configuration is required. For on-premise Bitrix24, configure accessibility on the server or hosting according to the article Required network access.

Overview of Events

Scope: crm

Who can subscribe: any user

Events

Event

Triggered

onCrmTimelineCommentAdd

When a new comment is created in the timeline manually or via the crm.timeline.comment.add method

onCrmTimelineCommentUpdate

When a comment in the timeline is updated manually or via the crm.timeline.comment.update method

onCrmTimelineCommentDelete

When a comment in the timeline is deleted manually or via the crm.timeline.comment.delete method