Hi Guys
We are seeing an issue within Google Merchants which is preventing us from being able to add the products we stock. Referring to UPC, ISBN, and Brand.
We have Branded every item. Most of the products we offer are from manufacturers overseas and they often are missing UPC's and ISBN's.
I have added 2 extra fields which are included in our XML upload to Google Merchants. UPC and ISBN. Can we simply add the word, False, to each one of those product fields which qualifies or do I need to create another extra field for identifier_exists, and then give each product the value of false?