Limits

When a limit is exceeded, the response is 429 with code -11005 and a Retry-After header (seconds until the next attempt):

{ "success": false, "error": { "code": -11005, "type": "rate-limit", "message": "Too many requests" }, "meta": { … } }

Recommendations:

• retry after Retry-After, not immediately; use exponential backoff on network errors;
• use webhooks instead of frequent polling of GET /v1/orders/{id};
• debounce recipient lookup in your UI.

Delivery limits (how many orders per minute are actually fulfilled) depend on the number of Supplier Accounts, not on the API, see throttling.