Log error types (timeout, 429, 5xx) and timestamps. Retry: 3 attempts with exponential backoff + jitter (e.g., 1s, 2s, 4s), then failover. Throttle ChatGPT calls—limit concurrency, batch requests, shorten prompts, and respect 429 headers. Fallback: push failed payloads to a durable queue (Airtable/Sheets/DB) and alert ops; process queued items with a scheduled Zap or worker at a slower cadence. Use Zapier’s Storage/Delay for simple queues and retries.

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