Adopted price for voucher can add.

Customer performs voucher for fixed amount 525 euro, regardless of which machine, how much sweeping dirt, how long busy, etc.

Now 3 invoice lines are added because there are 2 rates linked to the activity and 1 separate rate for article (sweeping waste). For now I have also set sweepings and transport to 0 through price agreements.

But then the system still generates 3 invoice lines of which 2 on 0 euro.