Feed not sending all information to Google Merchant Center

I set up the google merchant center and the feed is not sending all the products or all the information. Half of the products are not being sent. Google is also telling me there is missing information on items that were summitted. The information is to add image link, price and skew/mpn #. My products are one of a kind paintings so they are unique and don’t have those types of numbers. I added that in the product information but it is not receiving it. Any ideas on how to get the feed to send correctly?

With regards to product identifiers, you can follow the video below to resolve this.

https://www.youtube.com/watch?v=AyvilyMb2Bo

For products not submitting at all, usually what works is to edit the product info, for example something in the description, which should force the product to be submitted.

It is a known bug for 3 years, and still not fixed.

If it’s frustrating you too much, you might want to use a better app such as: https://apps.shopify.com/multiple-google-shopping-feeds