External WooCommerce Products

Hi, 1) For affiliate only WooCommerce site, is there best way to import products with external source link and buy button saying "Visit [store name]" and product buy button goes to source URL. 2) Is there a way to auto-attach my affiliate ID tag to all these crawled products for buy button to have the external link with tag such as https://sourcestore.com/product?tag=mystore Thanks