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Limits and buyer links

  • Codes: five per contact per hour. Some routes have a per-IP budget, so call checkout from the buyer's browser rather than through a proxy; then each buyer counts as one.
  • Retry a POST with Idempotency-Key. A replayed answer carries Idempotent-Replay.
  • Confirmation emails and gateway returns point at the shop's primary domain. To land buyers on your site, make your domain primary and serve /track/{token} there.
  • A plan change reaches the API within a minute.