Improve personal data. After attending the Yi Youth Pre-employment app, you need to improve your personal information after registration. If it is not unusable, it is necessary to improve personal data. Yi Zhiyi is a service platform for teenagers' career growth under Guangdong Zhixue Information Technology Co., Ltd., which has provided employment, internship, part-time, career and psychological assessment services for more than 3.5 million teenagers in China, Hong Kong, Macao and Taiwan.