UnityObjects.Data invoice = Global.UnityApp.NewDataObject(UnityObjects.DataObjectType.doSalesInvoice);
 invoice.New();
 invoice.DataFields.FieldByName("TYPE").Value = 7;
 invoice.DataFields.FieldByName("NUMBER").Value = "~";
 invoice.DataFields.FieldByName("DATE").Value = "01.07.2015";
 invoice.DataFields.FieldByName("TIME").Value = 19937115;
 invoice.DataFields.FieldByName("ARP_CODE").Value = "CRH01";
 invoice.DataFields.FieldByName("POST_FLAGS").Value = 247;
 invoice.DataFields.FieldByName("VAT_RATE").Value = 18;
 invoice.DataFields.FieldByName("VAT_INCLUDED_GRS").Value = 1;
 invoice.DataFields.FieldByName("CREATED_BY").Value = 1;
 invoice.DataFields.FieldByName("CURRSEL_TOTALS").Value = 1;
 UnityObjects.Lines transactions_lines = invoice.DataFields.FieldByName("TRANSACTIONS").Lines;
 transactions_lines.AppendLine();
 transactions_lines[transactions_lines.Count - 1].FieldByName("TYPE").Value = 0;
 transactions_lines[transactions_lines.Count - 1].FieldByName("MASTER_CODE").Value = "ETICARI01";
 transactions_lines[transactions_lines.Count - 1].FieldByName("QUANTITY").Value = 12;
 transactions_lines[transactions_lines.Count - 1].FieldByName("PRICE").Value = 365;
 transactions_lines[transactions_lines.Count - 1].FieldByName("UNIT_CODE").Value = "ADET";
 transactions_lines[transactions_lines.Count - 1].FieldByName("UNIT_CONV1").Value = 1;
 transactions_lines[transactions_lines.Count - 1].FieldByName("UNIT_CONV2").Value = 1;
 transactions_lines[transactions_lines.Count - 1].FieldByName("VAT_INCLUDED").Value = 1;
 transactions_lines[transactions_lines.Count - 1].FieldByName("VAT_RATE").Value = 18;
 transactions_lines[transactions_lines.Count - 1].FieldByName("EDT_CURR").Value = 1;
 transactions_lines[transactions_lines.Count - 1].FieldByName("MONTH").Value = 7;
 transactions_lines[transactions_lines.Count - 1].FieldByName("YEAR").Value = 2015;

 invoice.DataFields.FieldByName("DEDUCTIONPART1").Value = 2;
 invoice.DataFields.FieldByName("DEDUCTIONPART2").Value = 3;
 invoice.DataFields.FieldByName("AFFECT_RISK").Value = 0;
 invoice.DataFields.FieldByName("DOC_DATE").Value = "01.07.2015";
 invoice.DataFields.FieldByName("EINVOICE").Value = 1;
 invoice.DataFields.FieldByName("PROFILE_ID").Value = 2;
 invoice.DataFields.FieldByName("EXIMVAT").Value = 0;
 invoice.DataFields.FieldByName("EARCHIVEDETR_INTPAYMENTTYPE").Value = 0;
 invoice.DataFields.FieldByName("EBOOK_DOCDATE").Value = "06.07.2015";
 invoice.DataFields.FieldByName("EBOOK_DOCNR").Value = "1234";
 invoice.DataFields.FieldByName("EBOOK_DOCTYPE").Value = 5;
 invoice.DataFields.FieldByName("EBOOK_PAYTYPE").Value = "COKSECMELI";  
 invoice.DataFields.FieldByName("EBOOK_NOPAY").Value = 1;
 invoice.FillAccCodes();            
 if (invoice.Post() == true)
   {
     MessageBox.Show("POST OK !");
   }
 else
   {
     if (invoice.ErrorCode != 0)
       {
         MessageBox.Show("DBError(" + invoice.ErrorCode.ToString() + ")-" + invoice.ErrorDesc + invoice.DBErrorDesc);
       }
     else if (invoice.ValidateErrors.Count > 0)
       {
         string result = "XML ErrorList:";
         for (int i = 0; i < invoice.ValidateErrors.Count; i++)
            {
              result += "(" + invoice.ValidateErrors[i].ID.ToString() + ") - " + invoice.ValidateErrors[i].Error;
            }
          MessageBox.Show(result);
       }
    }

{
 "DataObjectParameter" : { 
"FillAccCodesOnPreSave":true },
 "INTERNAL_REFERENCE": 0,
 "NUMBER": "~",
 "DATE": "2020-12-06T00:00:00",
 "TIME": 2176817,
 "ARP_CODE": "003",
 "CURRSEL_TOTAL": 1,
 "TRANSACTIONS": {
 "items": [
 {
 "TYPE": 0,
 "MASTER_CODE": "002",
 "QUANTITY": 5,
 "PRICE": 10,
 "VAT_RATE": 18,
 "UNIT_CODE": "ADET",
 "UNIT_CONV1": 1,
 "UNIT_CONV2": 1,
 "EDT_CURR": 1
 }
 ]
 }