Adding UPC Data
UPC fields are native to Retail Pro. There is an importer built in to v9. See your Retail Pro dealer for more details.
Retail Pro v9 includes an export function that can be configured to export a list of in-stock UPC's and Quantities as often as you'd like.
See your Retail Pro dealer or a local technology export to learn how to upload reports to FTP sites or Dropbox.