E15.30 Customer performance measures: manufacturer LO 15.10 Refer to the information provided in Exercise E15.27. Joe Jackson is interested in monitoring the performance of different customer groups over time, and in tracking the company's overall sales and marketing performance using customer performance measures. Required Select some customer performance measures that may be suitable for this type of business, and explain to Joe Jackson how they might be used to improve the company's performance. (Hint: Review the five core customer measurement categories in Exhibit 15.15.)