How to Find Whether an API Retry Is Creating Duplicate Notifications

An API client may resend a request after a timeout even when the server completed the notification. Without deduplication, the recipient can receive repeated messages.

What to check

Compare request IDs, provider status, retry timing, idempotency support, and delivery events. Distinguish duplicate API calls from separate business events.

Recommended next step

Use idempotency or reconciliation before retrying uncertain outcomes. Informatix Systems can improve API integration and notification reliability.