If your request has been approved, it is valid.
The student-self-employed status is automatically extended for the following academic years and is valid until 30 September of the calendar year in which the student turns 25. What if you end your education early? You then switch to the self-employed status as your main occupation during the current period.
If you do not submit these documents on time, you will lose your student entrepreneurship for the current school year and be seen as self-employed, you will pay contributions as a self-employed with this activity as the main occupation