The Office 365 Groups Naming Policy is now generally available. The policy has taken nearly two years of preview to not get very far, but at least it’s now an official part of the service. Microsoft considers the naming policy to be an Azure Active Directory Premium feature. Many customers might think differently, especially because the naming policy must be implemented through PowerShell and can easily be mimicked through PowerShell. And of course, Exchange Online’s distribution list naming policy is free.
The prospect of having to pay for many Azure AD Premium P1 licenses just because you use an org-wide team is horrible to contemplate. But don’t worry. You don’t have to because the Teams developers look after membership updates for you.