Having a nice looking website is great – but if you are not able to lead your prospect down the right path they will never become a customer / client. How to build a sales funnel within WordPress. A sales funnel is a structured method for developing products and/or service offerings at multiple price points, designed to entice prospects to first divulge their contact information, then make an initial purchase, followed by additional purchases. The Marketing Funnel, done right, maximizes the lifetime value of a client.