USM allows you to keep a record of all the items available in the store.This feature is available in Inventory module which can be accessed by clicking on the menu bar on the right of the screen.
Step 1. Click on the menu bar on the top right of the screen and select the Inventory module.
Step 2. Click on the option Item Category on the left of the screen.
Step 3. For editing click on the edit option. To define a new category,fill name and code for that category and then click on the save option.