During the night of 3 December 2021, it was found that when Colaboratory was turned on for all users with ECCS Cloud Email (g.ecc.u-tokyo.ac.jp) and when management items in the Additional Google services were entered from the Google Admin console, the warning dialogue window did not appear. We apologize for any inconvenience that this may have caused.
As of 26 November 2021, the system is set so that if you log in with your ECCS Cloud Email account (g.ecc.u-tokyo.ac.jp) and use Google Colaboratory, a warning dialogue window "Ask your admin to enable Colab for your education account" will appear. (However, there is no problem in using Google Colaboratory.)
The "Details" link in the warning window states that the problem can be solved by logging in as an administrator and operating through the Admin. console but the corresponding menu is not displayed even if the administrator logs in. Therefore, we are currently investigating the cause.
We apologize for any inconvenience caused to the users.