What is a UPC barcode?
UPC barcode is a unique ID number assigned to a product for tracking retail sales and inventory

Do I need it?
UPC barcode is not mandatory unless it is required by a distributor, retail store, or if you intend to track retail sales yourselves

Where do I get it? Does it cost money?
Generally UPC barcode can be obtained from a replicator with a small fee or sometimes free of charge. If you prefer to get your own barcode directly from GS1, and there will be a one-time fee of $750. Check their website for most updated pricing.

How do I start tracking sales?
A barcode needs to be registered with soundscan or videoscan so you can start tracking retail sales. Reports can be obtained from soundscan or videoscan for a fee.