Customer data plays a vital role in organisations, particularly in sales and marketing. Integrating internal customer data across functions and departments is vital but equally important is integrating external sources of customer data. Without complete data the picture painted by eventual management information is incomplete. This book shows that data warehousing techniques can be used to integrate both internal and external customer data to deliver the management information necessary to support sales and marketing processes. In addition, two case studies of manufacturing organizations illustrate the practical application: both organizations partner with third party distributors who capture customer-related data on behalf of the organisation that needs to be integrated in order to deliver complete sales and marketing management information. This book will be useful to those in both managerial and technical positions who want to understand how data warehousing can meet management information needs in the sales and marketing function.