Lunch-n-Learn with Kano Keller as he reveals how to determine “The Lifetime Value of a Client.” In sales and marketing, customer lifetime value is a prediction of the net profit attributed to the entire future relationship with a customer. The prediction model may include heuristics, predictive analytics, & soft signals from personal relationships. Customer lifetime value is an important concept in that it encourages firms and entrepreneurs to shift their focus from quarterly profits to the long-term health of their customer relationships.