POST api/APGetInvoiceHeader

{
  "InvoiceId": 1
}

{
  "InvoiceHeader": {
    "SupplierHeader": {
      "SupplierAccountNumber": "sample string 1",
      "ClientCode": "sample string 2",
      "ClientAddress": "sample string 3",
      "ClientName": "sample string 4",
      "ClientTypeDescription": "sample string 5",
      "SupplierCategoryCodeDesc": "sample string 6",
      "SupplierNetAddress": "sample string 7",
      "Phone": "sample string 8",
      "AlternatePhone": "sample string 9",
      "AllInvoices": 10.0,
      "CancelledInvoices": 11.0,
      "TotalInvoices": 12.0,
      "TotalDiscounts": 13.0,
      "AllPayments": 14.0,
      "CancelledPayments": 15.0,
      "TotalPayments": 16.0,
      "OutstandingBalance": 17.0,
      "YtdTotalInvoices": 18.0,
      "YtdDiscounts": 19.0,
      "YtdTotalPayments": 20.0,
      "HoldDate": "2026-05-28T10:49:35.5724124-07:00"
    },
    "InvoiceId": 1,
    "InvoiceNumber": "sample string 2",
    "InvoiceStatus": "sample string 3",
    "InvoiceDate": "2026-05-28T10:49:35.5724124-07:00",
    "InvoiceDueDate": "2026-05-28T10:49:35.5724124-07:00",
    "InvoiceDescription": "sample string 6",
    "VoucherNumber": "sample string 7",
    "VoucherId": 8,
    "InvoiceAmount": 9.0,
    "OutstandingAmount": 10.0,
    "PONumber": "sample string 11",
    "POId": 12,
    "YearPeriod": "sample string 13",
    "BankCode": "sample string 14",
    "BankDesc": "sample string 15",
    "ExpenseRecordFlag": "sample string 16",
    "EftPapFlag": "sample string 17"
  }
}