Some products are not listing on Google Free. Missing value [shipping] in [Free_listings] [US]

I have approx 400 products in my store. All of them are fine except I have several that are giving me an error and are not being listed on Google Free Listing. The error message is:

Missing value [shipping] in [Free_listings] [US].

I have tried everything I can think of to get these products listed with no luck. Any help would be appreciated.

Thanks

Ken Graser

AKA The Smiling Wombat

If you are using Google Channel, go to the app > settings > set shipping to manual instead of automatic. Assuming this is the app you are using.

Then in Google Merchant Center > gear icon > shipping and returns > set your shipping rates.