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idempotency-in-flight

HTTP status: 409 Conflict Type URI: https://docs.evinor.ai/problems/idempotency-in-flight

Another request with the same Idempotency-Key is still being processed. Evinor runs an operation at most once per key, so a concurrent duplicate is rejected rather than executed a second time.

Common causes

  • Two clients (or two retries) firing the same idempotent request at nearly the same time.

How to resolve

Wait briefly and retry with the same key. Once the original request completes, retrying the same key replays its stored response instead of running the operation again. See Idempotency.