Bookem allows you to generate one invoice for multiple bookings
1. Open the appointment you want to invoice in your Calendar
2. Select New Invoice
4. This will generate a new invoice for that particular booking
5. To add additional appointments, click '+Add Booking'
7. Pick the next appointment you want to add to the invoice from the drop-down. Bookem will list all appointments that have not been invoiced.
6. You can add as many bookings to one invoice as you like.