To get the sale, you need to get the lead
To get the lead, you need to get the conversion
To get the conversion, you need to get the traffic
To get the traffic, you need to put up the ad
To put up the ad, you need to write the copy
To write the copy, you need to have the hook
To have the hook, you need to have the product
To have the product, you need to solve a problem.
To solve a problem, you need to know your market.