If you want to add an item to a customer's booking which is in a different currency or requires a separate invoice to the original booking, you can add it to a separated bill. A new invoice will be created and will not change the original bookings' invoice.
Steps to add a separate bill to a booking
1. In the Bookings page, click on Add.
2. Choose the item you want to book.
3. Select the option to "Add to a new bill"
4. A new bill will be created with a reference to the currency of the recently booked item (In this example, the bill reference is 2017-0206-EUR).
5. Using the drop-down option, you can choose to go back to the original booking page.
Please note that for different bills, a different invoice is also created relative to the item(s) you added to the new bill.
1. Original Booking invoice: