Oracle Integration Cloud: Building Integrations That Survive Production · Module 9 · Idempotency and duplicate prevention
Lab briefing · Make a payment flow safe to retry
Lesson 101 of 175 · 2 min
Take a flow that creates payables invoices, retry it three ways, and PROVE no duplicate exists in the target afterwards. Payables invoices are the right subject because the consequence is money, and because Fusion will happily create a second one — a transactional object with no natural key, which is the Technical course's point about idempotent versus non-idempotent loads. FIRST, CHOOSE AND TEST THE KEY. Something from the source that identifies exactly one invoice. Count records and distinct keys over a realistic period and confirm they match — Lesson 3, and doing it before building is the difference between prevention and a cleanup. THEN THE THREE RETRIES. ONE: run the whole flow twice. TWO: kill it halfway and rerun — the mid-file restart from Lesson 7, and the one file-level protection alone does not survive. THREE: simulate a timeout and retry the affected record, which is Lesson 6 and the…
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In this module: Module 9 · Idempotency and duplicate prevention
- 1Why every integration is retriedFree preview
- 2What idempotency means here
- 3Choosing a correlation key
- 4Where to enforce it
- 5When the target has no natural key
- 6Timeouts: the ambiguous outcome
- 7Idempotency across a whole file
- 8What breaks: three duplicate scenarios
- 9Lab briefing · Make a payment flow safe to retry