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Error Handling

status=error includes code and message.

Common examples:

  • -80: operation not supported
  • -29: invalid request parameters/body
  • -16: original transaction not found
  • -15: transaction not found
  • -47: unsupported currency
  • -21: cancelled by user
  • -20: declined
  • -54: card input timeout
  • -3: generic send/processing error
  • -100: critical version update required
  • -101: application blocked

Recommendation: handle all unknown codes as non-retriable by default, then fallback to /check for state recovery when financial status is uncertain.