Customer perspective To achieve the financial performance that a company wishes, it is essential having satisfied and loyal customers, with that goal in this perspective are measured customer relationships and expectations that they have on business. Moreover, this perspective takes into account the main elements that create value for customers, and to focus on processes that are most important to them and satisfy them more. The customer knowledge and processes that generate more value is very important to ensure that the financial picture is prosperous. Without the study of the peculiarities of the market that the company is focused there can be no sustainable development in the financial perspective as largely financial success comes from increased sales, a situation that is the effect of repeat customers their purchases because they like the products the company develops, taking into account their preferences.A good way of measuring or knowing the customer’s perspective is designing basic protocols of care and client using the methodology of undercover to the staff relationship with the customer contact (PEC).