Customer service refers to the customer service work (accepting customer consultation and helping customers solve their doubts), or the organization that undertakes customer service work. In different industries, the scope of customer service answering questions is different. For example, game customer service is to accept the work of game members and consult the players or their institutions themselves.

The so-called customer service is to help customers, show their value through labor, or gain benefits. Customer service includes external (business-to-customer) and internal (logistics departments and other departments of some units). Generally speaking, customer service refers to external customer service.