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IntegrationBeginnercdcintegration

What is Change Data Capture (CDC)?

Real World Scenario

Data warehouse needs near-real-time Salesforce Account changes. You explain CDC basics.

Expected Answer

• CDC publishes change events when records are created, updated, deleted, or undeleted • Events include changed fields and metadata for downstream sync • External subscribers consume via Pub/Sub API or middleware connectors • Reduces inefficient polling of Salesforce for changes • Enable CDC per object in Setup—impacts event volume and licensing considerations

Follow-Up Questions & Answers

Click to expand — each follow-up includes a direct, interview-ready answer

Change events show new values and changed field mask; combine with Field History for older values if needed.

Architect Perspective

CDC answers "how external systems know SF data changed"—memorize that framing.