Here is a step-by-step guide on how to get a UPC code:

1. Calculate how many products need UPC codes. You will need a different UPC for each product, including different sizes, volumes, flavors, etc.

2. Join GS1 US and apply for your GS1 company prefix.

3. Assign a unique product number.

4. Choose a barcode design.

5. Determine how to display the barcode.

6. Order your UPC barcodes.

7. Test the printed barcodes.

You can buy single codes for each product if you only have a few products that need barcodes. If your business has multiple products, choose a GS1 Company Prefix to get multiple barcodes for a variety of products .