Since the technology development for storing mass data, the analysis of profitability at the customer level is possible. There has been a growing interest in customer-oriented accounting and client profitability (Anandarajan & Christopher, 1987; Guilding & McManus, 2002; Robin & Kaplan Robert, 1999; Ryals, 2002). In the marketing literature, the analysis of customer profitability was proposed in the literature of direct marketing while cost accounting literature has focused on the customer profitability analysis on measuring customer revenues and customer costs (Jacobs, Johnston, & Kotchetova, 2001). These studies of customer profitability may be divided into three groups: (1) The concept of customer profitability. (2) The measure of customer profitability. (3) The application of customer profitability.