Items are set to be able for discount by default, this article will show you how to set an item to be unable for discount.
Tap the toolbar button in the lower left corner of the ZiiPOS homepage.
Go to “Settings”.
Click on the button on the left and then go to “Item”.
Select the item you need.
Click on “Extra Settings”.
Toggle off “Allow Discount”.
Click on “Save” and click on “Yes” to save.
Go back to the home page and log out of ZiiPOS then log in again to make sure that your settings take effective.