Glad to have you here in the Community, Mfenn05.

Allow me to share some insights about integrating barcode scanning for sub-items in QuickBooks Desktop (QBDT).

Setting up barcodes tied to different units of measure for each item or component of a product is not yet available in QBDT. However, you can still create a new inventory item for BBQ sauce without using the unit of measure. Since you can't scan a barcode for each item when measured as a case, QuickBooks will automatically consider it as one barcode number.

As a workaround, you can create a separate item for each BBQ sauce without specifying a unit of measure. This will allow you to create your own barcode for scanning. I can guide you through the process.

1. From the Inventory menu, select New Inventory item.
2. Choose Inventory Part as the Type.
3. Fill in the necessary information such as Item Name/Number, Barcode Number, and Income Account.
4. Then select, OK.

Here's a photo as your reference: 

In addition, QBDT integrates with different third-party applications to add powerful functionality to your accounting processes. For now, you can follow my colleague's steps on how to search and use a third-party application to set up barcodes tied to different units of measure for each item or component of a product.

For additional guidance on how to set up the barcode, you can follow the instructions above given by my colleague @Tori.

Moreover, feel free to visit these articles for more details about managing barcodes and warehouses for your business in QuickBooks Desktop:

• QuickBooks Scan Manager: Scan and attach documents to transactions
• Set up and use the Warehouse Manager App for QuickBooks Desktop Enterprise.

Let me know if you have other questions or need further assistance in setting up barcodes in QuickBooks Desktop. Have a good day ahead, @Mfenn05.