projekt kivitendo

        $bank_transaction->exchangerate(undef);       # maybe user reassigned bank_transaction

      } elsif ($default_rate != $fx_rate) {           # set record (banktransaction) exchangerate

        $bank_transaction->exchangerate($fx_rate);    # custom rate, will be displayed in ap, ir, is

        # should be last valid state -> do nothing

      } else { die "Invalid exchange rate state:" . $default_rate . " " . $fx_rate; }