If all the sales are cash (like selling products from warehouse), I do not see the POS is suitable for the scenario. Is there a way to do paid sales invoice?
I think there should be a place to determine if the invoice is cash or credit, or to enter the payment amount within the sales invoice. How?
The business case is the library (book shop) for the school, we need to buy and sell books. A lot of books (maybe 1000 or more).
Do u mean I have to select POS in the sales invoice?
Make a POS Profile in the accounts section and then use the POS feature from the desktop. During making the profile specify all the necessary requirements to make it easy for you to track .