One of the benefits of using the QuickBooks accounting software for your business is that it gives you the ability to track your product inventory. This feature is not enabled by default, so you must turn it on if you want to begin entering inventory items. You must be logged in to QuickBooks using an administrator account to activate inventory tracking.

Start QuickBooks. Select the "Edit" menu and choose "Preferences."

Select "Items & Inventory" from the navigation pane, then select the "Company Preferences" tab from the Preferences window.

Click the "Inventory and Purchase Orders Are Active" check box in the "Purchase Orders and Inventory" section. Click "OK" to apply the changes and activate inventory tracking.