buyer
/ˈbaɪ.ə(ɹ)/
A person who makes one or more purchases.
Every person who steps through the door is a potential buyer, so acknowledge their presence.
(retailing) A person who purchases items for resale in a retail establishment.
The supermarket's new buyer decided to stock a larger range of vegetarian foods.
A person who purchases items consumed or used as components in the manufacture of products.