I understand you are getting a shipping error and the plugin does not send the shipping cost. Please sign into your Google Merchant center account and navigate to Settings (the icon looks like a gear)>Shipping and Returns. On that page, go to “Your shipping services” then choose to “Add Shipping Service.”
Fill in the necessary information for your shipping service, such as the name, region, and currency. Make sure to add the shipping costs by specifying rates based on factors like order price or product weight. Save your changes.
Make sure the shipping service is assigned to the desired products.
Once you’ve completed these steps, your shipping information should be properly included in your product feed for Google listings. If not, please share a screenshot of your settings from the merchant center and from a product with the issue so we can look into this further.
