Typically, the cash drawer opens automatically based on the payment method used on an order. However, you can use the No Sale option in the SCIS User menu to open the cash drawer without a sales transaction.
After you select this option, you are prompted to choose a reason for opening the drawer. The NetSuite administrator creates Open Drawer Reasons that you can choose from. Some reasons why you might need to open the cash drawer outside of a regular transaction are:
Someone asks you to make change for them.
You make a mistake, accidentally closing the cash drawer before giving the customer all of the change due.
The drawer did not open as expected after you submitted a transaction.