How can I configure the Administrative Portal to get a Teams Chat/IM client get to a Skype for Business client?I have a test group that cannot send IM messages to Skype for Business.I am currently setup in Islands Mode.

David Kamp Have you considered changing your org-wide setting to Skype for Business? That way, you only need to touch each account once to move it to Teams Only mode. If you do this, users wouldn't have to keep both applications open (indeed, they would only be able to sign in to Skype for Business or Teams, depending on whether they were in SfB or Teams mode). If you have any users who specifically need to be able to be signed in to both applications at once, you could put them into Islands mode individually.

With my settings being Org Wide to Islands mode and the user to the same, Should a Teams client have the ability to IM a Skype for Business client (All Internal and Cloud Only)?

No, you can't give users the choice, that's what islands is for, but your users have to use both clients, they can't use one or the other. There is no way for them to just decide one day to use teams and send it to the client of choice, they don't move with what the user is using. You have to make the choice one way or the other, or they can use both at same time, but they have to run both at the same time as skype chats go skype, and teams to teams. You can't achieve what you are wanting per your last response.

If they are in islands mode all teams messages will go to the recipient Teams client ( except from external user chat ) set the users using Skype to Skype only coexistence mode! This will be done in teams admin portal - users - select the user and from here you can set the mode to Skype only! Otherwise the sender needs to use Skype to send them messages in Skype

Not sure I understand your Statement.If I go into the Microsoft Teams admin center then select Users, then select a random user, the Account hi-lighted the Topic "Teams upgrade" shows Coexistence mode as "Use Org-wide settings".What should it be set to? (Since the Org wide setting is Islands).

Teams IM to Skype for Business | Microsoft Community Hub

adam deltinger
MVP
Jul 17, 2019
If they are in islands mode all teams messages will go to the recipient Teams client ( except from external user chat ) set the users using Skype to Skype only coexistence mode! This will be done in teams admin portal - users - select the user and from here you can set the mode to Skype only! Otherwise the sender needs to use Skype to send them messages in Skype
- David Kamp
  Brass Contributor
  Jul 17, 2019
  Not sure I understand your Statement.
  If I go into the Microsoft Teams admin center then select Users, then select a random user, the Account hi-lighted the Topic "Teams upgrade" shows Coexistence mode as "Use Org-wide settings".
  What should it be set to? (Since the Org wide setting is Islands).
  - adam deltinger
    MVP
    Jul 17, 2019
    Yeah, now by default everyone is set to islands, but if you want a user or a set of users to only receive all messages in Skype you set them as Skype Only here!
    Same thing for Teams Only!
    Also be aware of that this change can take some time to propagate
ChrisWebbTech
MVP
Jul 17, 2019
It's all based on the recipient. If they are Islands then Teams messages goes to their Teams. If they are Teams Only, obviously comes to Teams. If they are one of the Skype Modes then they will get the message in Skype.

Check out this Video. It's very good explaining it. The whole series is great for Migration. https://www.youtube.com/watch?v=wEc9u4S3GIA

Just keep in mind switching modes can take days to take hold for endpoints to update on clients. Microsoft is working on 24 hour tops turn around, but don't think that has been deployed yet.
Maruthi Gadde
Iron Contributor
Jul 17, 2019
David Kampif you are using Island Mode a chat initiated in Teams will land in Team and a chat initiated in SFB will land in SFB.

If you want a Teams Chat to Land on to sfb, you need to ensure that the SFB users TeamsUpgradePolicy is set to SfBOnly or SfBOnlyWithNotify.

Through the portal you can only configure Org wide settings. To configure for individual users you will have to do it via powershell
its simple...

Down load Skype for Business PS - https://www.microsoft.com/en-us/download/confirmation.aspx?id=39366

In Powershell create a connection

Import-Module SkypeOnlineConnector
$userCredential = Get-Credential
$sfbSession = New-CsOnlineSession -Credential $userCredential
Import-PSSession $sfbSession

Grant-CsTeamsUpgradePolicy -Identity user1@yourTennantDomain.com -PolicyName SfBOnlyWithNotify
- David Kamp
  Brass Contributor
  Jul 18, 2019
  Maruthi Gadde This sounds like a lot of administration to perform.
  It sounds like if I want to slowly roll our users to Teams I must Manually touch each of our accounts two times. Once so that migrated Teams Clients can continue IM'ing with SFB and again after they are put onto Teams to put them in Teams mode. We have almost 4000 accounts.
  It would appear our Clients will need to Keep both applications open during a transition period.
  - Ryan Steele
    Bronze Contributor
    Jul 18, 2019
    David Kamp Have you considered changing your org-wide setting to Skype for Business? That way, you only need to touch each account once to move it to Teams Only mode. If you do this, users wouldn't have to keep both applications open (indeed, they would only be able to sign in to Skype for Business or Teams, depending on whether they were in SfB or Teams mode). If you have any users who specifically need to be able to be signed in to both applications at once, you could put them into Islands mode individually.

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Teams IM to Skype for Business

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