IntegrationBeginneridempotencyreliability
What is idempotency in integrations?
Real World Scenario
Network blip causes the same invoice POST twice. Finance sees duplicate Opportunities. You explain idempotency.
Expected Answer
• Idempotent operations produce same result if executed once or multiple times
• Use external IDs, idempotency keys in headers, or duplicate detection rules
• Retries are normal—design handlers to detect already-processed messages
• Log correlation IDs linking source transaction to Salesforce record
• Critical for payments, order create, and inventory movements
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
By HTTP convention often yes, but you implement idempotent POST semantics in business layer with keys.
Architect Perspective
Retries happen—idempotency is not optional on money-moving integrations.