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Hi @Amy Keith,
Thank you for your question.
You're right. Many organizations have used shared calendars for scheduling Teams meetings without needing a separate Teams license. But over time, Microsoft has made some changes to how Teams integrates with Exchange Online, and that’s led to stricter requirements around licensing and configuration.
Here’s what’s different now:
- Shared mailboxes don’t come with a Teams license by default, and as Teams features have evolved, things like generating meeting links now require a licensed user mailbox.
- The Teams Meeting toggle might not show up in Outlook or Outlook on the web unless the shared mailbox is set up correctly and accessed using delegate permissions.
- Microsoft now recommends using delegate access - meaning the user should have Full Access and Send As permissions - and adding the shared mailbox using the “Add Account” option in Outlook to ensure everything works as expected.
So, while it might feel like a change in how shared mailboxes work, it’s more about Microsoft tightening up how Teams and Exchange Online interact behind the scenes.
As other users will also search information in this community, your valuable vote will definitely also help other users who have similar queries easily to find the correct channel and useful information more quickly.
We truly appreciate your time and cooperation throughout the resolution of this matter. Thank you for being a valued customer and for contacting us on the Microsoft Q&A forum.
If you need any other assistance, please don’t hesitate to reach out again and I would be happy to help you.
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