Requiring a valid, unique product key is a software company's way of ensuring that each copy of their program is used only once and that each customer is paying for each copy used.
Ịchọ nkwado, isi ngwaahịa dị iche iche bụ ụzọ ọrụ ụlọ ọrụ software iji hụ na a na-eji nke ọ bụla n'ime ha mee ihe n'otu ugboro na onye ahịa ọ bụla na-akwụ ụgwọ maka ọ bụla ejiri ya.