The steps to create a unit of measure depend on which mode QuickBooks is using: Single U/M Per Item or Multiple U/M Per Item. See our article on setting the unit of measure preference for more information.
In Single U/M Per Item, the unit of measure for an item is maintained with other information for that item. Click on the Lists->Item List menu selection and select the appropriate item. Choose < Add New > to add a new unit of measure or select an existing unit previously created.
Adding an entirely new unit of measure invokes the Unit of Measure Wizard, a 2 step process that guides you through creating a new unit of measure.
First, choose the type of the unit of measure to create and click Next. For this example, we’ll create a Count unit of measure.
Finally, choose the unit of measure itself. We’ll choose Each.
Once a unit of measure is specified for an item, that unit can be displayed on forms to better describe the line item.