Rate limits

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Best practices

• Use unique references for collections and transfers.
• Do not retry a request immediately in a tight loop.
• Reuse the transaction reference to check status.
• Cache rates briefly in your interface, but request a fresh quote before confirming.
• Treat duplicate reference errors as a sign that the original request may already exist.

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Safe retry pattern

1. Send the request with a unique reference.
2. If the network fails, check the transaction endpoint with the same reference.
3. Retry only when you are sure the original request was not accepted.
4. Store the final transaction status in your own system.