Rate limits

The public contract may return 429 when request patterns threaten stability or operational cost.

Recommended behavior

• Apply exponential backoff with jitter.
• Respect upstream timeouts on your side too.
• Use queues and batching for high-volume sync jobs.
• Do not retry forever on 422 or 401.

Minimum observability

Track 429 rates by route, environment and credential. They usually expose loops, aggressive polling or poor replay control.