public static AccpacView ArCustomer;
a4wLink.OpenView("AR0024", out ArCustomer);
a4wLink.OpenView("AR0400", out ArCustomerOpt);
ArCustomer.Compose(new object[] { ArCustomerOpt });
ArCustomerOpt.Compose(new object[] { ArCustomer });

static string MakeCustomer(OrderResponseDetailHigh order, bool bEbay, bool bJet, bool bAmazonCanada, bool bAmazon, bool bWalmart, bool bAmazonUK, bool bAmazonMX, string sCustGroup, string sAccountSet, string sTerms, bool bGoogleExpress, string sAvalaraSalesPerson)
{

string sBrowse = "";
string sAdd1 = "";
string sFullName = order.ShippingInfo.FirstName + " " + order.ShippingInfo.LastName;
if (order.ShippingInfo.AddressLine1 == null)
{
sAdd1 = "";
}
else
{
sAdd1 = order.ShippingInfo.AddressLine1.Replace("\"", "");
}
// 11/29/15 Escape names like O'conner
//sBrowse = "select * from ARCUS WHERE namecust = '" + sFullName.Replace("\"", "") + @"' and TEXTSTRE1 = '" + sAdd1 + "' and codepstl = '" + order.ShippingInfo.PostalCode + "'";
sBrowse = "select * from ARCUS WHERE namecust = '" + sFullName.Replace("\"", "").Replace("'", "''") + @"' and TEXTSTRE1 = '" + sAdd1.Replace("'", "''") + "' and codepstl = '" + order.ShippingInfo.PostalCode.Replace("-", "").Substring(0, Math.Min(order.ShippingInfo.PostalCode.Length, 9)) + "'";
//thisShip.PostalCode.Replace("-","").Substring(0,Math.Min(thisShip.PostalCode.Length, 9))

ArCustReadCS0120.Browse(sBrowse, true);
ArCustReadCS0120.InternalSet(256);
if (ArCustReadCS0120.Fetch())
{
return ArCustReadCS0120.Fields.FieldByName["idcust"].get_Value().ToString();
}
else
{
//3 first name, 3 last name, mi, 000
// Bill to Name + Address1 + Zip
string sNewCust = "";
string sAlphas = "";

Regex regName = new Regex(@"[^\w\s]"); // No punctuation
sAlphas = regName.Replace(NoPrefix(sFullName.Trim().ToUpper()).Replace(" ", " "), ""); // Remove extra spaces, too
Regex regNoNums = new Regex(@"[\d]"); // No digits
sAlphas = regNoNums.Replace(sAlphas, "").Trim();

string[] sSplitName = sAlphas.Split(' '); // remove double spaces
if (sSplitName.Length >= 3) // A middle initial
{
sNewCust = ((sSplitName[0] + "XXX").Substring(0, 3) + (sSplitName[2] + "XXX").Substring(0, 3));
}
else
{
if (sSplitName.Length == 2)
{
sNewCust = ((sSplitName[0] + "XXX").Substring(0, 3) + (sSplitName[1] + "XXX").Substring(0, 3));
}
else
{
sNewCust = (sSplitName[0] + "XXXXXX").Substring(0, 6);
}
}

int i = 0;

// Find the next open number
do {
ArCustReadCS0120.Cancel();
ArCustReadCS0120.Browse("select * from arcus where idcust = '" + sNewCust + i.ToString("000") + "'", true);
ArCustReadCS0120.InternalSet(256);
if (ArCustReadCS0120.Fetch()) i += 1;
else break;
} while (true);

if (order.BillingInfo.AddressLine1 == null) {
sAdd1 = "";
}
else {
sAdd1 = order.ShippingInfo.AddressLine1.Replace("\"", ""); }

ArCustomer.Cancel();
ArCustomer.Fields.FieldByName["idcust"].PutWithoutVerification(sNewCust + i.ToString("000"));
ArCustomer.Process();

// Default Group
//ArCustomer.Fields.FieldByName["idgrp"].PutWithoutVerification("31100");
ArCustomer.Fields.FieldByName["idgrp"].PutWithoutVerification(sCustGroup);

ArCustomer.Fields.FieldByName["idacctset"].PutWithoutVerification(sAccountSet);
ArCustomer.Fields.FieldByName["CODETERM"].PutWithoutVerification(sTerms);

ArCustomer.Process();
ArCustomer.Fields.FieldByName["CODESLSP1"].PutWithoutVerification(sAvalaraSalesPerson);
ArCustomer.Fields.FieldByName["namecust"].PutWithoutVerification(order.ShippingInfo.FirstName + " " + order.ShippingInfo.LastName);
ArCustomer.Fields.FieldByName["TEXTSTRE1"].PutWithoutVerification(sAdd1);
ArCustomer.Fields.FieldByName["TEXTSTRE2"].PutWithoutVerification(order.ShippingInfo.AddressLine2);
ArCustomer.Fields.FieldByName["NAMECITY"].PutWithoutVerification(order.ShippingInfo.City);
ArCustomer.Fields.FieldByName["codepstl"].PutWithoutVerification(order.ShippingInfo.PostalCode.Replace("-", "").Substring(0, Math.Min(order.ShippingInfo.PostalCode.Length, 9)));
ArCustomer.Fields.FieldByName["codestte"].PutWithoutVerification(order.ShippingInfo.Region);
ArCustomer.Fields.FieldByName["codectry"].PutWithoutVerification(order.ShippingInfo.CountryCode);
ArCustomer.Fields.FieldByName["EMAIL1"].PutWithoutVerification(order.BuyerEmailAddress);
ArCustomer.Fields.FieldByName["EMAIL2"].PutWithoutVerification(order.BuyerEmailAddress);

// 05/04/20 Add Walmart AVATAX
// 03/24/21 Walmart now none
if (bWalmart)
//if (bWalmart && sCustGroup != "31111") // 31111 = Walmart Canada
{
ArCustomer.Fields.FieldByName["CODETAXGRP"].PutWithoutVerification("NONE");
}
else
{
/// Old logic
if (ArCustomer.Fields.FieldByName["codestte"].get_Value().ToString().ToUpper() == "NC")
{ ArCustomer.Fields.FieldByName["CODETAXGRP"].PutWithoutVerification("AVATAX"); }
else
{
if (bAmazonCanada)
{
ArCustomer.Fields.FieldByName["CODETAXGRP"].PutWithoutVerification("CAD");
}
else
if (bAmazonUK)
{
ArCustomer.Fields.FieldByName["CODETAXGRP"].PutWithoutVerification("UK");
}
else
{
ArCustomer.Fields.FieldByName["CODETAXGRP"].PutWithoutVerification("AVATAX");
}
}

}

string resultString = "";
try
{
Regex regexObj = new Regex(@"[^\d]");
resultString = regexObj.Replace(order.BillingInfo.PhoneNumberDay, "");
}
catch { }

ArCustomer.Fields.FieldByName["TEXTPHON1"].PutWithoutVerification(resultString);

try
{
AddCustomerOpt("SALESTERR", "A");
AddCustomerOpt("VENREP", "HS");
ArCustomer.Insert();
Console.WriteLine(ArCustomer.Fields.FieldByName["idcust"].get_Value() + " " + ArCustomer.Fields.FieldByName["namecust"].get_Value());
}
catch
{
HandleError("MakeCustomer", "");
}
return ArCustomer.Fields.FieldByName["idcust"].get_Value().ToString();
}
}

Thank you so much, i will try the above and let you know