University Identity Number and user ID
When you are admitted to exchange studies or a degree programme you will receive a University Identity Number (UIN).
The UIN consists of your birth date, followed by a letter and then three random numbers, for example 880527-T281. The letter is in most cases a T, therefore the number is sometimes called “T-number”. Exchange students receive this number when registering at the university. You use this number to identify yourself at the university, for example when you register for exams or request a study transcript. Don’t confuse this number with a Swedish Personal Identity Number. If you receive a Swedish Personal Identity Number you should exchange the UIN for this number by bringing a "personbevis" from the Tax Agency (Skatteverket) or a copy of a Swedish ID card to the Student Centre, which will inform LADOK.
When you register you also receive a user ID, sometimes called a student ID, which starts with an S followed by the year you started your studies and four random numbers, for example S118692. You use the user ID for logging in to all the web services.
How to apply for a Swedish Personal Identity Number