I am testing the Google Shopping App, but I noticed one thing and I am not sure if it's only happening to my installation or to everyone else -- after I "Duplicate" a product, I noticed that the newly created product has the same metafield "google.gmc_id" value as the original product. However, products that I created without duplication does not has the same value.
My question is, what is the metafield for and where does the value come from (the first part of the id appears to be the product id, but I have no idea where the second part of the number comes from)? And, if my experience normal? If yes, how would 2 products with the same "google.gmc_id" affect the feed being sent to Google Shopping? If no, how could I fix that?
