Rate limit handling (429)

Use this playbook when Relay returns 429 Too Many Requests.

Recommended handling

1. Honor the Retry-After header.
2. Use exponential backoff with jitter to avoid synchronized retries.
3. Keep retries idempotent with Idempotency-Key on POSTs.
4. Reduce burst traffic or batch work if limits persist.

Escalation

Open a support ticket if 429s persist after honoring Retry-After and backoff.