In today's business, the customer contact and retention plays an increasingly important role. CRM software (Customer Relationship Management) provides for the management of customer relationships, the corresponding functionality. A good CRM software has all the information about the establishment and expansion of business relationships with new and existing customers. They maintained a targeted turnover-and quickly to customer contacts the company. But CRM software is not just CRM software. On the CRM software market basket applications offered very different priorities in their scope: from small functionality to Outlook through to database-driven enterprise version with interfaces to other external systems. Applicable is that the CRM software to the individual needs of a company should be adjusted. Companies wishing to use CRM must be in front of the entire available balance for a specific CRM software in mind which pursues strategic direction to their companies and what an improvement inoperations will be sought. A distinction is made between, for example Operational CRM software, which helps for easy integration within the distribution concern, and analytical CRM software that optimizes the processing and analysis of customer data. Furthermore, there is the collaborative CRM software, which combines all communication channels of a company with its customers. What type of CRM software, the company itself may also decide that the way to choosing a particular scheme is generally rockier than expected.