The Sale screen is used to make sale and ultimately produce a receipt to the customer.
It offers many advanced functions, such as compulsory fields (eg sales rep name, customer selection), or whether a discount can be given, if so approval required from a senior, and maximum amount of discount. 
Allows user to navigate easily by either scanning an items barcode, or select from speed buttons using a mouse or a touch screen monitor.

Integration to EFTPOS pinpad makes life easier by simply selecting the payment type, and system talks directly to merchant bank to produce the customer receipt and the EFTPOS on the same printer.

Below is a Sample screen setup for a cafe. The menu items change as you add new categories and products within those categories,