October 07, 2020 19:47
I am conducting a research project using scanner data from a marketing company containing sales over time for each UPC of a particular food category.
After trying for a while, I have not been able to find a single match between the UPCs in my data set and the UPCs in your database. I’ve searched for some example UPCs online and found that, for the ones that I could find a match in the Nutritionix dataset, the first 5-6 digits match the 5-6 digits of the same product in my data, however, the rest always differ.
Is this a problem that people have had before? Any ideas of what might be behind it?