{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/PaymentCancellationRequest",
  "title": "PaymentCancellationRequest",
  "type": "object",
  "description": "Payment cancellation request aligned with ISO 20022 camt.056 FIToFIPaymentCancellationRequest",
  "required": [
    "reason"
  ],
  "properties": {
    "reason": {
      "type": "string",
      "description": "Cancellation reason code",
      "enum": [
        "DUPL",
        "AGNT",
        "CURR",
        "CUST",
        "UPAY",
        "FRAD",
        "TECH"
      ]
    },
    "additionalInformation": {
      "type": "string",
      "description": "Additional information about the cancellation request"
    }
  }
}