Customer service is mainly responsible for customer service, which is generally divided into three types: pre-sales customer service, in-sales customer service and after-sales customer service. Some companies will divide it very carefully, while others will not. The same person may do three kinds of jobs at the same time, so it should be clear that the main job of customer service is to be responsible for customer telephone reception, call back customers regularly, understand customer satisfaction with services and business needs, and handle customer complaints and consultations. Be sure to find out the main job content of the client before the interview, so that the interviewer can answer questions.