This article focuses on the optimal information support based on CRM databases to have stored data in suitable structure and up to date for CRM decision making. The method solution is based on a review of the literature, specification of suitable metrics and subsequent data collection to evaluate database support. The value added is visible in the common recommendation for database support in the form of a combination of the necessary processes and knowledge for sharing with IT users. There seems to be a gap in the optimal sharing of information and adopted database support in CRM.