Customer relationship management includes all the sophisticated methodologies. It is a comprehensive way to manage the relationships which company has with its customers. There is a fierce competiton between companies, small businesses have to compete on equal terms with large organizations. This situation leads to discussion about customer oriented approach and diligence to prevent the loss of customer portfolio. Increase in the knowledge of customers is a key point of success. Information technology boosts customer relationship management. Companies face expensiveness of technologies and they try to find cheaper and more reachable solution. To find and evaluate criteria of success of CRM Software-as-a-Service in Czech Republic is the obje...