Available in Sage 50 Premium Accounting and higher.
Turn On or Off Inventory and Service Item Categories
Before you can perform this task
                                                
                                                    
                                            
                                            If you are in multi-user mode, switch to single-user mode.
To turn on or off categories for inventory and service items:
- In the Home window, on the Setup menu, choose Settings.
 - Open Inventory & Services, and choose Categories.
 - Select the check box for My company uses Categories for inventory and service items.
 - Click OK.