All items sold in your store have price look up (PLU) numbers to identify them. Before you can set up PLUs, you must define the product hierarchy that classifies PLUs.

The levels in the product hierarchy are shown below in order of highest to lowest level:

You define the product hierarchy beginning with the highest level (department categories), followed by the second highest level (department groups), and so on. Before you can assign department groups to a category, you must create the category. Similarly, before you can assign departments to a group, you must create a group. User flags allow you to further classify items by creating divisions in a department.