Customer service and support are a critical component of customer relationship management. These services are delivered through call centers and the internet, facilitating both upselling and cross-selling opportunities. Customer service and support provide customers with features such as product quality assurance, business consultations, on-site service, order tracking, customer care, service requests, service contracts, repair scheduling, and dispute resolution.

Customer service and support functions generally include the following:

(1) Product installation tracking (2) Service contract management

(3) Help desk management (4) Returns and repair management

(5) Complaint management and knowledge base (6) Customer care

(7) Calendar and schedule