The Group ID and Group Display Name can be changed at any time.
Before you invite users, it is efficient to change the Group ID from its default value to an easy-to-understand alphanumeric phrase (such as your company name).
▼Check/Change Group Number and Names (Web Browser)
https://teachme.jp/8/manuals/51162875
When the Group ID is changed, all users of the Teachme series who have a registered email address will be notified of the updated Group ID.
※For users without a registered email address, please notify them directly as an administrator.
※Only administrators and Sub-administrators can make changes to the Group Profile, including the Group ID.