1. The advertising content is not attractive enough: the customer may have seen the advertisement, but was not attracted by the advertising content, so he did not consult further.
2. Competitors are more attractive: customers may see your advertisements, but they also see competitors' advertisements, which are more attractive, so customers choose competitors.
3. Poor website experience: customers may click on advertisements, but after entering the website, they find that the website experience is poor, such as slow website loading speed and unsightly page design, so customers choose to leave.
4. The customer doesn't need your product or service: The customer may have seen the advertisement but didn't need your product or service, so he didn't ask further.
These are some possible reasons. I suggest you optimize the advertising content and website experience to improve the customer conversion rate.