Cannot Tenant to Teams Only upgrade mode in Teams Admin Center

When changing the coexistence mode to Teams only you get the following error: Please see the unsaved sections higlighted in red below:

We cannot see what the problem is when switching to teams only. With powershell it has better error messages. Use the following powershell to connect to teams and change the tennant

#Connect with the SkypeOnlineConnector
Import-Module SkypeOnlineConnector
$sfbSession = New-CsOnlineSession
Import-PSSession $sfbSession

#Change the tennant to TeamsOnly
Grant-CsTeamsUpgradePolicy -PolicyName UpgradeToTeams -Global

The following message appears:

This organization cannot be upgraded to TeamsOnly at the tenant level because there is an on-premise deployment of Skyp
e for Business detected in 1 or more of it sip domains

To change this use the following command:

Disable-CsOnlineSipDomain -Domain domainname

After all domains have been altered, you can change the tenant to TeamsOnly with Powershell or the GUI:

sources:

Error upgrading organization to TeamsOnly – TechNut

Chris Webb’s 365 Blog: Cannot set users or Tenant to Teams Only upgrade mode in Teams Admin Center (webbtech.org)

Failed To Disable The Mailbox Due To a Conflict In Directory Settings

If you have a conflict in directory settings between Microsoft 365 and your on premise location use the next procedure to solve this

Check if the affected mailbox in Exchange Online is an usermailbox

get-recipient user | fl recipient*

If not already, disable the user account in the on-premise environment.

disable-mailbox user

Wait (or force) until the changes replicate to Microsoft 365. Once it is synced, enable the on-premise object as an remote user mailbox

Enable-RemoteMailbox user -RemoteRoutingAddress user@domain.onmicrosoft.com

Wait (or force) until the sync to Microsoft 365 has been completed and then check the user. The error message should be gone and a license can be added

Microsoft Teams – Welcome Message

Microsoft teams can send welcome messages when a user is added to the teams. This behavior can be altered with powershell

The current setting for the team can be checked with powershell. To run this, you need to be connected to Microsoft 365. For Microsoft 365 management you can install the “Microsoft Exchange Online Powershell Module” from Microsoft 365.

Get-UnifiedGroup -Identity 'Group Name' | fl WelcomeMessageEnabled

The outcome should be True or False. When it is set to True, welcome messages will be send. To change this setting, so welcome messages are not send, change the value to false

set-UnifiedGroup -Identity 'Group Name' -UnifiedGroupWelcomeMessageEnabled:$False

Get Office 365 users with a specific license type via Powershell

It can sometimes be useful to get a list of Office 365 users with a specific license type via PowerShell. Instead of logging into the Office 365 portal and using a filtered view in the admin center, you can do it straight from the command line.

  • Connect to Office 365 via Powershell. If this cmdlet doesn’t work for you, follow this quick guide for instructions on installing the required PowerShell module.

Connect-MsolService

  • Run Get-MsolAccountSku to get a list of the current licenses in your Office 365 tenant. Make a note of the AccountSkuId value for the license you want to filter on.

Get-MsolAccountSku

Get-MsolAccountSku Information
  • Now you can edit this short script to get the users matching that license. In this case, we’re getting users with the EnterprisePremium license.

Get-MsolUser | Where-Object {($_.licenses).AccountSkuId -match "EnterprisePremium"}

Replace EnterprisePremium with the AccountSkuID you’re trying to filter by. Since we’re using the -match operator we don’t need to type the entire AccountSkuID, we can just type enough of it to ensure that we’re only retrieving that specific one.

The script can be tweaked for specific use

Get-MsolUser -MaxResults 100000 | Where-Object {($_.licenses).AccountSkuId -match "EnterprisePremium"} | ft UserPrincipalName, IsLicensed | Out-File c:\temp\E3.csv

Get-MsolUser With Specific Office 365 License

Export these users to a text document

You can export these users to a text document using the Out-File cmdlet.

Get-MsolUser | Where-Object {($_.licenses).AccountSkuId -match "EnterprisePremium"} | Out-file C:\temp\EnterprisePremiumUsers.csv

Source: https://gcits.com/knowledge-base/get-office-365-users-specific-license-type-via-powershell/