In brief, the answer is “No!” – You must do more than merely drive customer satisfaction scores up. As an illustration, consider the Cadillac Brougham of the 1980s. The design of this automobile had virtually no changes from 1978 through 1992. During most of those years, I was working at Cadillac. The result? The people who loved that car kept buying it, through several lifetimes of automobiles (typically 2 to 5 years of ownership). They tended to be very loyal. During that ten-year plus span of time, the average Cadillac buyer aged almost ten years as well. Customer satisfaction was going up for this car. Those who lived long enough bought several and loved each one. However, sales went down!
We were experiencing a diminishing, perhaps dying (literally) market of customers who loved our product. Thus, despite the notion that satisfying customers leads to increased sales, it is not merely the driving up of the scores that delivers sales. You must also have exciting products that attract and please new customers as well. By the time the Brougham was significantly altered, many of the original target market had died. It had been 14 years. Even though these buyers loved that car, we needed to attract a new audience to maintain or increase sales.
Thus, increasing customer satisfaction scores is not enough. Remember, these scores come after the fact, sometimes one or more years after purchase. They can testify to the initial purchase process and design, as well as customer service. However, what you want is increasing scores AND increasing sales. This necessarily means product enhancements and service enhancements to attract and satisfy new customers, with new “pains.”
Have you experienced the phenomenon of increased customer satisfaction and decreasing sales?