I can no longer log in on a device that is using access authorization management. What should I do?

The following causes are possible.

• The identification code was changed due to a device change, app reinstallation, or similar action
• The device registration was deleted

Please follow the steps below to obtain the identification code of the app you are using, and contact your group administrator or group sub-administrator.

　▼Obtain the identification code
　Mobile app：https://teachme.jp/8/manuals/9920280