Currently when you add an Invoice payment to a booking in Preno, the invoice amount will be for the full amount of the booking, even if part of the booking has already been paid off.
To apply a partial invoice, please do the following:
Click 'Add payment/create invoice'.
Select 'Deposit'.
Choose 'Invoice Guest' as the payment method.
Enter the amount to invoice.
Select any guest name and click 'Add'.
