IntegrationBeginnerplatform-eventsevent-driven
What are Platform Events?
Real World Scenario
Order shipped in ERP should notify Salesforce without polling every minute. You introduce Platform Events.
Expected Answer
• Platform Events are custom event messages published and subscribed to in Salesforce
• Publishers external or internal write event records to event bus
• Subscribers use Apex triggers, Flow, or CometD to react asynchronously
• Decouples systems—ERP publishes once; many Salesforce processes can subscribe
• Events are fire-and-forget; design idempotent handlers for duplicate delivery
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
CDC emits standard change events on Salesforce records. Platform Events are custom payloads you define for any business signal.
Architect Perspective
Platform Event = custom notification on bus. Contrast with CDC to show you know both.