I have an old ecommerce platform that tracks what products are sold (names, price, transaction), gives us a return on Adwords spend etc. This is performed well by an old Urchin code in Google Analytics without any additional configuration.
Very surprised to see that by default in Universal Analytics when couple with OpenCart etc - even with Ecommerce switched on in Google Analytics, there is no Google Analytics ecommerce product data tracking.
Can this only be provided through Google Tag Manager by finding your product variables add then adding a datalayer with GTM?