You can use Employee Management to restrict your employees from accessing select information. https://squareup.com/pos/employee-management There is a fee for this service of $5.00 per employee. Your other option would be Guest Access which can be set up at https://squareup.com/dashboard/employees/permissions/roles

You can review additional information in this article as well. https://squareup.com/help/us/en/article/5591