The back office belongs to the formal employees of the insurance company, who signed the labor contract, while the insurance salesmen including the billing personnel belong to the field, and the compensation and survey belong to the customer service center and the formal employees of the company. Every department of an insurance company has a background, specifically, the manager's office, customer service center, finance department, comprehensive office, individual insurance department, group insurance department, bank insurance department, exhibition department and marketing department. Write down which department you used to work in and whether there is a back office.