Change Data Capture is a feature that enables you to receive near-real-time changes of Salesforce records, including create, update, delete, and undelete operations. Change Data Capture retainschange events in the event bus for up to three days, so you can resume data replication from the point of failure. Change Data Capture also provides a consistent and reliable way to synchronize data changes with external systems, without the need for custom triggers or code. Reference: Salesforce Integration Architecture Designer Resource Guide, page 24