A search field for products in your ShopSite store is available in both ShopSite Manager and ShopSite Pro. Providing a search field on your website is great for customers to easily find what they are looking for. With the ShopSite search you, as the merchant, have many configuration settings that give you more control over how the search works, how it indexes your products, and how those products are displayed to your customers. For more information about the search settings in ShopSite stores, you can refer to the link below.
ShopSite Help - Product Search Configuration Settings