Different barcode formats exist because products, inventory systems, and retailers expect specific standards.
Code 128 is flexible for many internal labels and shipping workflows. EAN and UPC styles are common on retail products.
Before generating a barcode, confirm which format your marketplace, printer, or warehouse system accepts.
Enter the value carefully. A single mistyped digit can create a code that prints correctly but scans to the wrong item.
Generate a sample, scan it with a phone or scanner, and only then print the full label run.