When uploading product feed to GMC, even if you only select several specific product categories, Smart Ads will scan all the products to decide whether the products meet the uploading requirements. If products belong to the selected categories, the system will upload them to GMC; if they do not belong to the selected categories, they will be filtered out. Then Smart Ads will tell you "the product does not belong to the feed product sources." Therefore this notice does not mean your Feed violates any GMC regulations.
Have more questions? Submit a request