Dynamics GP eConnect SOP Invoice XML Generator

<?xml version="1.0" encoding="utf-8"?>
<eConnect xmlns:dt="urn:schemas-microsoft-com:datatypes">
  <SOPTransactionType>
    <taSopLineIvcInsert_Items>
      <taSopLineIvcInsert>
        <SOPTYPE>3</SOPTYPE>
        <SOPNUMBE>INV-000123</SOPNUMBE>
        <CUSTNMBR>AARONFIT0001</CUSTNMBR>
        <DOCDATE>2026-10-22</DOCDATE>
        <LOCNCODE>WAREHOUSE</LOCNCODE>
        <ITEMNMBR>128 SDRAM</ITEMNMBR>
        <UNITPRCE>89.95</UNITPRCE>
        <XTNDPRCE>179.90</XTNDPRCE>
        <QUANTITY>2</QUANTITY>
        <UOFM>Each</UOFM>
        <DOCID>STDINV</DOCID>
        <DEFPRICING>0</DEFPRICING>
      </taSopLineIvcInsert>
    </taSopLineIvcInsert_Items>
    <taSopHdrIvcInsert>
      <SOPTYPE>3</SOPTYPE>
      <DOCID>STDINV</DOCID>
      <SOPNUMBE>INV-000123</SOPNUMBE>
      <BACHNUMB>EC-SOP-1026</BACHNUMB>
      <LOCNCODE>WAREHOUSE</LOCNCODE>
      <DOCDATE>2026-10-22</DOCDATE>
      <CUSTNMBR>AARONFIT0001</CUSTNMBR>
      <SUBTOTAL>179.90</SUBTOTAL>
      <DOCAMNT>179.90</DOCAMNT>
      <CREATEDIST>1</CREATEDIST>
    </taSopHdrIvcInsert>
  </SOPTransactionType>
</eConnect>

using System;
using System.IO;
using Microsoft.Dynamics.GP.eConnect;

class PostSopDocument
{
    static void Main()
    {
        string connectionString = "Data Source=GPSQL01;Initial Catalog=TWO;Integrated Security=SSPI;Persist Security Info=False;";
        string xml = File.ReadAllText(@"C:\eConnect\INV-000123.xml");

        using (eConnectMethods eConCall = new eConnectMethods())
        {
            try
            {
                // Returns the XML document with any values eConnect assigned
                string result = eConCall.CreateTransactionEntity(connectionString, xml);
                Console.WriteLine(result);
            }
            catch (eConnectException ex)
            {
                // Business rule errors from the ta procedures arrive here
                Console.WriteLine(ex.Message);
            }
        }
    }
}