There may be several reasons for this:

a) You did not consent to data transfer during single sign-on.

b) If you have set up two-factor authentication (2FA) in TU Darmstadt Identity Management (IDM), you must also log in to TUCaN with 2FA.

c) TU-ID and password do not belong together.

d) You have not activated your TU-ID yet.

e) You are new to TU and have just activated your TU-ID. After activation, the activation in TUCaN usually takes place within the next working day.

Information about the TU-ID and the activation can be found here..

If your TU ID and password are correct, but you still cannot log in, please fill out our contact form. .