When you are admitted to graduate school, you have to transfer the files to the school. I think you can do some communication with the unit, mainly whether the unit agrees or disagrees that you want to be admitted to the graduate school. On-the-job graduate students should leave their jobs without pay, or you can get paid if you are capable. Ha ha ha, graduate students have good prospects, but it is difficult for state-owned enterprises to enter, so formal ones are even better. Now everyone wants a sense of security. This society is so realistic that it is difficult for some graduate students to find jobs now. If you pass the exam, the company will definitely give you better treatment, better length of service and salary, but not particularly big. I hope everything goes well with you and my future is good, hehe.