Free Teams Licenses Now Blocked for Federated Communications
Microsoft announced blocked Teams federated chat for trial tenants in June 2024. That block is now well and truly enforced. If you use an account in a trial tenant (and many flavors of these accounts exist), then you won’t be able to set up a federated chat with someone in another Microsoft 365 tenant. It’s an example of how Microsoft restricts service functionality to stop misuse. https://office365itpros.com/2024/10/09/blocked-teams-federated-chat/
