You need to have an identity number issued by the Turkish Republic. This number is also used in İstanbul Okan University’s Student Affairs Information System
Your identity number is required for you to get student certificate and any other kind of document you need during your education and graduation period
After receiving your residence permit you can learn your foreign identification number. It is written on your residence permit card.
The number you have must be 11 digit starting with 99. If needed, you can use your YOK number that you can obtain from Students Affairs Department until you have foreign identity number.