Uwaga:  You can
                                 access the details of an existing invoice or order by entering the transaction
                                 reference on the Purchase Return Note form and clicking OK. If you modify these details using the
                                 Purchase Return Note form, you modify the original invoice or order. You cannot
                                 raise a Purchase Return Note in this way. For example, if you amend the quantity,
                                 the quantity on the original transaction is amended; a return note is not raised.