Advertising only helps you reach customers. Whether customers buy or not depends on your product
In general, Facebook Ads is one of the most useful tools for PPC. The fact that you haven't received conversions might stem from incorrectly targeting your audience, perhaps by using the wrong interests or not putting enough effort into defining your brand's personality. I have worked with this tool frequently; I'm not saying it's always the solution to every problem, but it often proves helpful. Practice is key, and understanding when it's best to use it is crucial.
You should check your content and offers, it seems like it is not really attractive, making customers not interested in your products.
Facebook advertising today is extremely good but only for those who are really good and know how to use it smartly. Does your campaign have a lot of visits but no revenue? There are many factors to explain that problem: advertising content and landing page are inconsistent, your price is too high, the website is not reputable enough for customers to decide to buy, your advertising target is not good. , ....
Reasons why advertising cannot exploit customers:
Maybe you need to put a pixel on a page that opens after a targeted action. It is possible that you have a pixel just on the button for leaving your contacts.
This is very good marketing, but other goals are needed to increase conversions
