{
  "Cashier": "Software QA Engineer",
  "buyerId": "DT12345",
  "BuyerCostCenterId": "Data Tech",
  "InvoiceNumber": "DEMO-2025-NS1",
  "DateAndTimeOfIssue": "2025-08-11T09:17:42+12:00",
  "invoiceType": "Normal",
  "transactionType": "Sale",
  "referentDocumentNumber": "LK2VRSH4-LK2VRSH4-6",
  "payment": [{"amount": 1000, "paymentType": "Cash"}],
  "Options": { "omitTextualRepresentation": 0, "omitQRCodeGen": 1 },
  "Items": [
    { "Name": "Final goods/service", "Quantity": 1, "UnitPrice": 1000, "Labels": ["A"], "TotalAmount": 1000 }
  ]
}