Booking activity is accessed through the main menu under booking. Here you can see an overview of recent booking changes. You can also see an overview of any negative client balances, or unpaid invoices and pay them.
Tap the pass name or a client's balance to access the quickcash payment or sell a product menu. Tapping the quickcash "paid in cash" amount immediately marks the full balance as a cash payment. Tapping "sell a product" takes you to the sell product window.
Tap the client's name to access the client's window.
Any unpaid invoices appear at the bottom of this screen. Tap on the invoice amount to open a window with more details. Tap on the details to open the payments window