Hi there, @info,

The barcode scanning for inventory management is only available in QuickBooks Desktop.

Let me route you through another forum called Intuit Developers Forum. It's a place where different developers and coders help each other about app development, integrations, and programming. By doing so, they can see how to integrate your barcode scanner with QuickBooks Online.

Here's how to get in touch with them:

1. Go to this link: https://developer.intuit.com/.
2. Scroll down, then click Contact us under the Intuit column.
3. Select your subscription (see selectproduct.png).
4. Click Ask A Question (see askaquestion.png).
5. Sign in to your account, then follow on-screen instructions.

I've added this tutorial on the items you add to lists and use on your sales forms: Adding Products and Services, Customers, and Vendors to Lists.

If there's anything else I can help you with, please let me know. I'm always glad to help.