Customer Data Management (CDM) is a marketing term that refers to the process of collecting, organizing, and analyzing customer data. The goal of CDM is to help businesses better understand their customers so that they can more effectively target marketing efforts and improve sales and customer service.

There are several different software applications and tools available to help businesses with their CDM efforts. These include customer relationship management (CRM) systems, marketing automation platforms and data mining or marketing intelligence tools.

To be effective, CDM must be approached in a strategic way. Businesses need to define what kinds of data they want to collect, how they will collect it and how they will use it. They also need to put processes and systems in place to ensure that the data is accurate and up-to-date.