Missing field "shippingDetails" (in "offers") #40
Description
Much of what is required for structured data on a product page is the same data as that required in the feed for Google Merchant Center. This is one of them.
I've recently done a lot of work on GMC, privately and decided to just put a flat shipping price per country.
Probably real quotes can be extracted from the shipping modules in real time per product but I didn't have the energy to investigate it at the time. I just did enough to clear the feed errors.
Maybe someone can do it properly....