Here is the scenario.
I am selling products in different countries. And each product has a different shipping rate. For example, product A shipping cost for USA is $10 and same item shipping rate for Australia is $14 AUD.
In Google Merchant Center, my items are approved for USA.
However rest of the destinations are not approved because the error says "Missing value [shipping]".
I went to Google Merchant Center -> Shipping and Returns and then click clicked + sign to add a Shipping Service.
Where it asks for products filter by shipping label, how I can select my products? Please note, I don;t want all products to use one shipping rate.
I am using Content API in feeds and Google Channel app in my store.
I am targeting 5 countries so I will need different shipping rates for these countries and each product.