I have hundreds of UPC, I'm wonder what the best way is to fill in missing data like MPN, EAN, ISBN, weight, L x W x H, etc
I have used UPC databases manually copy & paste data, but I know there is UPC databases out there that are paid. I think amazon and google also have apis that provide data. Considered hiring someone to scrape data programmatically.
How are you filling in data gaps of products?