LD+JSON Use for SameAs Product

Question

Assume you have an eCommerce site from which you sell some product. You also sell that product on Amazon. What would be the SEO implications of using the sameAs property in your eCommerce site's ld+json to link to your Amazon URL as well? Is this a valid practice and would you gain anything by it?

For example:

{
   "@context":"https://schema.org/",
   "@type":"Product",
   "sameAs":[AMAZON URL HERE],
   "name":"My Product",
   "image":"myproductimage.jpg",
   "description":"my description",
   "brand":{
      "@type":"Thing",
      "name":"Brand"
   },
   "sku":"SKU",
   "mpn":"MPN",
   "offers":{ ... }
}