I am searching for a brand in my product listings and when I do it displays duplicate values of the brands. There are product listings that have the same brand.
How do I only display the single brand? I want the user to search for only the single unique brand name.
That won’t work, you’re searching for the 1st product in your product list and not for unique brands.
How is your database structured?
Assuming each Product has a list of Brands and same brand is associated with multiple products and you are trying to display a list of unique brand names - try this in your dropdown:
You could achieve that by using a plugin that removes duplicates from search boxes, I haven’t used it but you could give it a try.
As an alternative you could create a separate data type for Brands with unique brand names and setup your search box to find choices from the Brands database.
Also create a field of data type Brands in your Product list to link the 2 data types.