Here's a video that shows you how to close the cash register for the day.

To close your cash drawer/register, follow these steps:
In Zenoti, go to your Appointment Book.
In the Appointment Book, click an open slot.
From the context menu that appears, select Manage Register.
Note: The name of the Manage Register menu option is customizable and may differ for your business.To close the register, click Close Payments.

More Info
💡 To close payments or cash up, check out this article.
💡 To search for today's open invoices and close the register, try these steps.
💡 Check for past open invoices in the Sales report and then close the cash register.
💡 To open the cash register, follow these steps.