Hello - I am setting up my shop and I need to import my UPC numbers from my POS system on Lightspeed to Shopify. I understand from this article: http://www.lightspeedretail.com/cloud/retaileasy/2011/10/exporting-upcs-to-shopify/ that the Shopify API does not accept UPC numbers, but can accept additional data like UPCs through metafields.
This article is from 2011 and I could not find other information about this. Can you advise the best way to bulk import UPCs from the Lightspeed POS to Shopify without having to manually re-add them to every product in Shopify?
Thanks.