Create Free text invoice via X++ using Templates in AX 2012 R3

Below is the code snippet to be used in X++ code editor when creating Free text invoice(FTI) using Free text invoice templates.

static void CreateFTIfromTemplate(Args _args)
{
    CustInvoiceTable    custInvoiceTable,custInvoiceTable1;
    CustInvoiceTemplate custInvoiceTemplate;
    CustInvoiceLine     custInvoiceLine;
    CustPostInvoice     custPostInvoice;
    CustTable           custtable;
    CustInvoiceLineTemplate custInvoiceLineTemplate;

    Date  invoiceDate = systemdateget();
    Date  dueDate = systemdateget()+10;


    try
    {
        custtable = Custtable::find("00001");
        custInvoiceTemplate = CustInvoiceTemplate::findByTemplateName("Dues");

        ttsBegin;
        custInvoiceTable.clear();
        custInvoiceTable.OrderAccount = custtable.AccountNum;

        custInvoiceTable.initFromCustInvoiceTemplate(
            custInvoiceTemplate,
            custtable,
            CustRecurrenceInvoiceDefaultType::InvoiceTemplate, //This can be defaulted from customer too
            invoiceDate);
        custInvoiceTable.DueDate = dueDate;
        custInvoiceTable.insert();

        // Creates a free text invoice lines by using customer free text invoice line template.
        while select custInvoiceLineTemplate
            where custInvoiceLineTemplate.CustInvoiceTemplate == custInvoiceTemplate.RecId
        {

            custInvoiceLine.clear();

            custInvoiceLine.insertFromCustInvoiceLineTemplate(custInvoiceLineTemplate,
                                                                custInvoiceTable,
                                                                custtable,
                                                                CustRecurrenceInvoiceDefaultType::InvoiceTemplate); //This can be defaulted from customer too
        }

        //just to be sure for proper distributions
        SourceDocumentProcessor::submitSourceDocumentLinesForHeader(custInvoiceTable.SourceDocumentHeader);

        //post FTI
        Select custInvoiceTable1 where custInvoiceTable1.RecId == custInvoiceTable.RecId;
        custPostInvoice = new CustPostInvoice(custInvoiceTable1);
        custPostInvoice.run();

        ttsCommit;

        info(strFmt("Invoice generated for customer %1", custtable.AccountNum));
    }
    catch
    {
        error(strFmt("Error in generating invoice for customer %1",custtable.AccountNum));
    }

}

Do share your thoughts and if you find anything incorrect here.
Thanks!