Change Data Capture Developer Guide

Change Data Capture
Keep Your External Data Current with Change Data Capture
Subscribe to Change Events
Subscription Channels
Subscribe with the EMP Connector Sample
High-Level Replication Steps
Change Event Message Structure
Security Considerations
Change Event Considerations
Standard Object Notes
Sending Data Differences for Fields of Updated Records
Other Types of Change Events: Gap and Overflow Events
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Subscribe to Change Events

You subscribe to change events the same way you subscribe to other events with CometD, like PushTopic events or platform events. CometD is a messaging library that enables listening to events through long polling and simulates push technology.

User Permissions Required

The subscriber must have one or more of the following permissions depending on the subscription channel: View All Data, View All Users, and View All for an object. See Required Permissions for Subscription.