Teams Room Devices Need Proper Licenses by July 1, 2023
Teams Rooms Devices for All (source: Microsoft)
On March 24, Microsoft announced a major change in the licensing regime for Teams Rooms devices. In a nutshell, Microsoft wants to stop tenants assigning user subscription licenses (like Office 365 E3 or Microsoft 365 E5) to certified Teams Rooms systems like a Surface Hub. Instead, they will require tenants to assign a Teams Rooms Basic or Teams Rooms Pro license to each device (details of the licenses are available here).
In fact, you don’t assign licenses to a Teams Rooms device. Instead, you assign the license to the Exchange Online room mailbox that manages the calendar for the device. An Exchange Online room mailbox comes with an Azure AD account that holds the license.
Microsoft says that after July 1, 2023, tenants cannot assign user subscription licenses to Teams Rooms devices. More importantly, Microsoft will block sign-ins from devices with user subscription licenses until the devices receive a Teams Rooms license.
License Types
Small organizations can rely on the Basic (no cost) license. The basic license covers “core meeting experiences” meaning that the device can schedule and join meetings and share content and whiteboarding during meetings. However, Microsoft limits these licenses to 25 Teams Rooms devices per tenant and doesn’t allow tenants to assign basic licenses to Teams panels, which require Teams Rooms Pro or Teams Shared Device licenses.
After a tenant operates more than 25 Teams Rooms devices, they must buy Pro licenses (each costing $480 for the annual subscription). If you’ve assigned user subscription licenses to Teams Rooms devices in the past, this is roughly equivalent to the annual cost of an Office 365 E5 license. The extra cost pays for “enhanced in-room meeting experiences” like better audio and video and “advanced management” like remote device management. For more details about the functionality enabled by Teams Pro licenses, see Microsoft’s comparison.
Using PowerShell to Find Licensed Room Mailboxes
The process of switching from user subscription licenses involves finding devices with those licenses, removing the licenses, and assigning a new license. To help, Microsoft created a script using Microsoft Graph PowerShell SDK cmdlets to examine and report the licenses assigned to the accounts used by room mailboxes.
Microsoft’s script uses this code to find the room mailboxes.
It’s a good example of code that works perfectly in a test environment that will be horribly slow in production. First, the code uses the old Get-Mailbox cmdlet to find mailboxes. Second, it uses a client-side filter to extract room mailboxes from the set of mailboxes. That set could be tens of thousands, so deriving the set of room mailboxes will be very slow. This version is better:
Apart from using Get-ExoMailbox to fetch mailboxes and taking advantage of the much better performance of the new REST-based cmdlets together with their ability to survive transient network failures, the code uses a server-side filter to force Exchange Online to do the heavy lifting of finding room mailboxes and only transmitting their details to the client. The golden rule is that time the Get-ExoMailbox cmdlet needs to filter objects, use a server-side filter.
Oddly, the original code doesn’t declare the variable to receive the result of Get-Mailbox to be an array and ends up reporting the count of room mailboxes using the Length rather than the Count property. Another golden rule is to always declare an array to receive results from cmdlets that return PowerShell objects as it makes it much easier to check the returned values.
Always Best to Be Efficient
A case exists that this script is a one-time operation that doesn’t need to be ultra-efficient. That might be so, but it’s nice when a few tweaks make the code run much faster, especially for large tenants that are likely to have many Teams Rooms devices that might need a license check.
2 Replies to “Microsoft Enforces New License Rules for Teams Room Devices”
Am i missing something here with this post? The author suggests a powershell script to find licensed rooms. I am not finding anything in the powershell script example that would show that the room mailbox has a license and what type of license it has. What am i missing ?
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Am i missing something here with this post? The author suggests a powershell script to find licensed rooms. I am not finding anything in the powershell script example that would show that the room mailbox has a license and what type of license it has. What am i missing ?
The Microsoft script is linked in the post (to https://learn.microsoft.com/en-gb/MicrosoftTeams/rooms/license-check?https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fmicrosoft-entra-azure-ad-blog%2Fnew-admin-center-unifies-azure-ad-with-other-identity-and-access%2Fba-p%2F2792595%3FWT.mc_id=M365-MVP-9501)
The script returns sets of counts for Teams Rooms holding licenses of various sorts.