Forum Discussion
Turn off ability to create teams
We also have had a A1 plan with Azure Basic which should be included. It is difficult to setup the process but it should be supported to disable this feature.
Disable Teams: http://macslui.blogspot.com/2017/11/disable-self-service-teams-creation.html
Manage 365 Groups: https://support.office.com/en-us/article/Manage-who-can-create-Office-365-Groups-4c46c8cb-17d0-44b5-9776-005fced8e618
In addition persons can create Distribution List if that feature is available to users if you have not secure it.
http://msweany.blogspot.com/2014/06/office365-remove-users-create-dist-list.html
MicrosoftWe do not recommend to disable people from creating Teams as it takes away a lot of the value that Teams provide. Instead we would recommend to double down of user education -- and make users aware that the admin can see who created certain Team in case their is an inappropriate Team being created.
More information: https://docs.microsoft.com/en-us/microsoftteams/plan-teams-governance-edu
Thomas Binder The problem is, you mention "people" in general. I agree with this, but consider students and especially pupils - there should be an easy button for school admins, avoiding PowerShell completely.