Our company must understand the customer need and want in order to retain the existing customer. For example, if the customers are not satisfied, they will try to find other substitutes that will meet their needs and wants. Thus, the increasing of growth rate of our business from existing customer will prove that effectiveness of using Online CoP. On the other hand, one of the customer value propositions of objectives is improve the product and services quality in order to gain the competitive advantages. For example, if the customers complain about our products and services, it will affect the reputation of the company. Therefore, the decreasing of percentages of returns from customers will show that how effectiveness of using online