Using the Google & YouTube App's Manage Product Button is not viable. I have to be able to set the Google Product Category while editing the product, and not leaving the product page to go someplace else completely.
I can't believe any idiot would think that is a workable solution.
Which of the following statements is true?
Some say the Google Product Category is set in the Product Page under Product Organization in the Field Product Category. That the Google & YouTube App only uses that and nothing else.
Others say that Field Product Category is not used by the Google & YouTube App. Only the metafield "mm-google-shopping.google_product_category" is used and nothing else.
Still others say that when you update the Field Product Category, it will also update the metafield "mm-google-shopping.google_product_category" so the two match always.