Cannot run form on non interactive session

Hi all,

i'm tring to run a report during the posting of a ledger journal table to print a proforma invoice for a vendor. In AX 2012 it worked by customizing the post VendVoucher.post() method calling the the report by menuFunction. So in 365 i have extened the VendVoucher this way:

[ExtensionOf(ClassStr(VendVoucher))]
final class PAC001aVendVoucher_Extension
{
    public void post(LedgerVoucher   _ledgerPostingJournal,
                     CustVendTrans   _vendTrans,
                     NoYes           _approval,
                     UnknownNoYes    _euroTriangulation,
                     boolean         _withHoldTaxType,
                     boolean         _useSubLedger)
    {

        ledgerJournalTable  ledgerJournalTable;
        ledgerJournalTrans  ledgerJournalTrans;
        ;

        ttsbegin;

        next post(_ledgerPostingJournal, _vendTrans, _approval, _euroTriangulation, _withHoldTaxType, _useSubLedger);
 
        if (common.TableId == tablenum(LedgerJournalTrans))
        {
            LedgerJournalTrans = common;
            ledgerJournalTable = LedgerJournalTrans.ledgerJournalTable();
        }

        if(ledgerJournalTable.PAC001aPrintProforma)
            this.PAC001aCommissionPrintJournal(vendInvoiceJour);
 
        ttscommit;
    }

    void PAC001aCommissionPrintJournal(vendInvoiceJour _vendInvoiceJour)
    {

        Args args;

        ;
        _vendInvoiceJour.Proforma   = NoYes::Yes;
        args = new Args();
        args.name(identifierStr(PurchInvoiceOriginal));
        args.record(_vendInvoiceJour);
        new menuFunction('PAC001aAgentProformaInvoice', MenuItemType::Output).run(args);
        //new menuFunction('PurchInvoiceOriginal', MenuItemType::Output).run(args);

        throw error(strFmt("%1 %2", "@SYS119253",_vendInvoiceJour.vendName()));

    }

}

where the throw error is needed beacuse i want to rollback the process after the report has printed to screen.

In Ax 365 this gives me the error :

"Stack trace: Cannot run form on non interactive session"

Someone can halp me to print the report and rollback as i can do in ax 2012?