Bulk Generate UPC-A Barcodes

The FBA Listing Requirement

If you are an e-commerce seller using Fulfillment by Amazon (FBA), you know that Amazon has strict requirements for product identification. Every new product listing requires a unique Global Trade Item Number (GTIN) that matches the GS1 database.

For sellers in North America, this is typically a 12-digit UPC-A barcode. When you source a new catalog of products—perhaps 100 new items from a manufacturer—you must assign and print a unique UPC-A for every single item before sending them to the Amazon fulfillment center.

Automating the Packaging Workflow

Generating 100 UPC barcodes manually is a tedious chokepoint that delays your shipment.

Using a Bulk Barcode Generator, you can automate this packaging workflow:

1. Copy your column of 12-digit UPCs provided by GS1 from your inventory spreadsheet.
2. Paste the list into the bulk generator.
3. Select "UPC-A" as the symbology format.
4. Export a ZIP file of crisp PNG images or a multi-page PDF.

Thermal Printing for Polybags

If you choose the PNG export, the images are perfectly formatted to be sent to a standard thermal label printer (like Rollo, Dymo, or Zebra). You can rapidly print hundreds of sticky labels on a continuous roll and slap them onto your product polybags, ensuring rapid and error-free check-in at the FBA warehouse.