When setting up various things on your system in System/Settings you can find tab 'Units'.
Units may be assigned to your products to determine their properties. Our team has prepared a set of default units for you, however here you may put basically anything you wish.
It does not matter if your shop has products measured in boxes, cases, bags, kilograms or any other unit. You are in no way limited by the choice of the already existing units. Your imagination and ideas here give you power to do it fully with your expectations.
You may create a new unit in a very simple way.
Give it a name and a symbol and that's it.
Note that unit field is numeric only. You cannot enter anything other than numerical values.