Barcode configuration

One barcode per product sku

Choose No if you allow a product SKU to have
MULTIPLE barcodes

Barcode pattern

Enter the pattern that will be used to generate barcode

Default barcode template for printing

set barcode template used for printing (Standard,
A4, Jewelry or any other custom template)

Use the attribute as barcode

Select an attribute. This attribute will be used to scan barcode on POS.

Please note that you can only select unique attribute, which means attribute that has unique value
for each product. You can create new attribute by following this path: Stores > Attributes >
Product > Add New Attribute and set Unique Value = Yes.