You can now easily scan barcodes using a 3rd party HID barcode scanner connected to your computer (most HID scanners are supported).
Make sure that the web app is in focus and there are no text fields selected when items are scanned. Upon scanning a recognized barcode, an item quick look window will appear, allowing you to make quantity adjustments.
Scanning an unrecognized barcode will display an alert asking if you would like to create a new item.
Barcode scanning on the web app is only available with the Business Tier.