From early February 2026, when creating a new group in Teams, SharePoint, or Outlook (Microsoft 365 Groups), “-group” will be automatically appended to the end of that name.
This change is intended to prevent the creation of inappropriate names and to avoid confusion in management.

For example, new teams named “SpringAclass” and “PRteam-public” are changed to “SpringAclass-group” and “PRteam-public-group”, respectively.

Please be informed that existing teams or groups are not affected by this policy unless you rename the existing ones. Also please note that newly created “public” teams are required to have the suffix “-public” as announced before.

Any question please ask: https://www.cc.tsukuba.ac.jp/wp_e/contact/ees_inquiry/

See also:

• What is an overview of groups in Teams, SharePoint and Stream?
• Microsoft 365 Usage and Operation Policy in the University of Tsukuba
• What should I care about when creating a team on Microsoft Teams?