Example:

    {
  "ExtraFields": {
    "sample string 1": "sample string 2",
    "sample string 3": "sample string 4"
  },
  "PositionExtraFields": {
    "sample string 1": {
      "sample string 1": "sample string 2",
      "sample string 3": "sample string 4"
    },
    "sample string 2": {
      "sample string 1": "sample string 2",
      "sample string 3": "sample string 4"
    }
  },
  "Date": "2024-12-27T00:16:39.5901439+01:00",
  "BusinessPartner": {
    "BusinessPartnerReferenceNumber": "sample string 1",
    "ReferenceAddressNumber": "sample string 2",
    "BusinessPartnerContract": "sample string 3",
    "BusinessPartnerContractDate": "2024-12-27T00:16:39.5901439+01:00",
    "ContactPersonId": 4,
    "LastName": "sample string 5",
    "Company": "sample string 6",
    "Salutation": "sample string 7",
    "FirstName": "sample string 8",
    "Address": {
      "Number": "sample string 1",
      "Street": "sample string 2",
      "City": "sample string 3",
      "ZipCode": "sample string 4",
      "CountryId": "sample string 5",
      "AdditionalInformation1": "sample string 6",
      "AdditionalInformation2": "sample string 7",
      "AdditionalInformation3": "sample string 8"
    }
  },
  "Payment": {
    "BankingDetailsId": 1,
    "BankAccount": "sample string 2",
    "IsCashSale": true,
    "PaymentTerm": "sample string 4",
    "PaymentTermLabel": "sample string 5",
    "PaymentPeriod": 6,
    "PaymentPeriodLabel": "sample string 7",
    "PaymentPeriodKind": 8,
    "PaymentDocumentReferenceNumber": "sample string 9",
    "FinancialAccountNumber": "sample string 10",
    "BankAccountGroup": "sample string 11",
    "BankAccountGroupLabel": "sample string 12",
    "CostCenterLabel": "sample string 13",
    "FinancialAccountExportDate": "2024-12-27T00:16:39.5901439+01:00",
    "FinancialAccountClause": "sample string 15",
    "IsPaymentLock": true,
    "CostCenterNumber": "sample string 17"
  },
  "IsPrinted": true,
  "EmployeeNumber": "sample string 2",
  "EmployeeLabel": "sample string 3",
  "SalesmanNumber": "sample string 4",
  "SalesmanLabel": "sample string 5",
  "WarehouseNumber": "sample string 6",
  "WarehouseLabel": "sample string 7",
  "CurrencyCode": "sample string 8",
  "CurrencyLabel": "sample string 9",
  "CurrencyExchangeRate": 10.1,
  "DeliveryTermNumber": "sample string 11",
  "DeliveryTermLabel": "sample string 12",
  "DeliveryText": "sample string 13",
  "DeliveryText2": "sample string 14",
  "PriceGroupNumber": "sample string 15",
  "PriceGroupLabel": "sample string 16",
  "PriceKindFlag": "sample string 17",
  "DiscountGroupNumber": "sample string 18",
  "DiscountGroupLabel": "sample string 19",
  "DiscountAmount": 20.1,
  "CashDiscountDays": 21,
  "CashDiscountDaysKind": 22,
  "CashDiscountPercent": 23.1,
  "CashDiscountLabel": "sample string 24",
  "CashDiscount2Days": 25,
  "CashDiscount2DaysKind": 26,
  "CashDiscount2Percent": 27.1,
  "CashDiscount2Label": "sample string 28",
  "AlternativeWirCurrencyAmount": 29.1,
  "AlternativeWirCurrencyPercent": 30.1,
  "AlternativeWirCurrencyKind": "sample string 31",
  "DeliveryDate": "2024-12-27T00:16:39.5901439+01:00",
  "StatusLabel": "sample string 32",
  "OurReference": "sample string 33",
  "LanguageCode": "sample string 34",
  "LanguageLabel": "sample string 35",
  "DeliveryDocumentNumber": "sample string 36",
  "MaintenanceContractReference": 37,
  "DefaultPrintTemplate": "sample string 38",
  "BillingAddress": "sample string 39",
  "RateKind": 40,
  "FixedRate": 41.1,
  "EuropeanCountryCode": "sample string 42",
  "TrafficRouteKind": "sample string 43",
  "TrafficRouteKindLabel": "sample string 44",
  "InternationalLocationNumber": "sample string 45",
  "NativeInvoiceRecipientNumber": "sample string 46",
  "EdiStatusKind": "sample string 47",
  "EdiStatusLabel": "sample string 48",
  "ValutaDate": "2024-12-27T00:16:39.5901439+01:00",
  "WarehouseLocationNumber": "sample string 49",
  "WarehouseLocationLabel": "sample string 50",
  "PositionTotalRoundNearest": 51,
  "TotalRoundNearest": 52,
  "AssociationRegulatorNumber": "sample string 53",
  "DelcrederePercent": 54.1,
  "StockTransferCode": "sample string 55",
  "DisplayName": "sample string 56",
  "ReturnMerchandiseAuthorizationNumber": "sample string 57",
  "ReportCountryCode": "sample string 58",
  "CustomField": {
    "Text1": "sample string 1",
    "Text2": "sample string 2",
    "Number1": 1.1,
    "Number2": 1.1,
    "Number3": 1,
    "Number4": 1,
    "Date1": "2024-12-27T00:16:39.5901439+01:00",
    "Date2": "2024-12-27T00:16:39.5901439+01:00",
    "Flag1": true,
    "Flag2": true,
    "Flag3": true,
    "Flag4": true
  },
  "StatusFlag": "sample string 59",
  "DeliveryAddress": {
    "Number": 1,
    "Salutation": "sample string 2",
    "Title": "sample string 3",
    "FirstName": "sample string 4",
    "LastName": "sample string 5",
    "Company": "sample string 6",
    "Department": "sample string 7",
    "Function": "sample string 8",
    "Priority": 9,
    "InternationalLocationNumber": "sample string 10",
    "Address": {
      "Street": "sample string 1",
      "City": "sample string 2",
      "ZipCode": "sample string 3",
      "CountryFlag": "sample string 4",
      "AdditionalInformation1": "sample string 5",
      "AdditionalInformation2": "sample string 6",
      "AdditionalInformation3": "sample string 7"
    },
    "PostOfficeBox": {
      "Number": "sample string 1",
      "ZipCode": "sample string 2",
      "City": "sample string 3",
      "CountryId": "sample string 4"
    },
    "Contact": {
      "FaxNumber": "sample string 1",
      "TelephoneNumber1": "sample string 2",
      "TelephoneNumber2": "sample string 3",
      "TelephoneNumber3": "sample string 4",
      "EMail": "sample string 5",
      "HomePageUrl": "sample string 6"
    }
  },
  "PaymentReference": "sample string 60",
  "HeaderText": "sample string 61",
  "FooterText": "sample string 62",
  "SurchargeArticleNumber": "sample string 63"
}