Unknown user

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Microsoft

Whenever I try to add some external users to a Teams team.  I'm seeing that their email address gets converted to Unknown User as soon as I select to add their email address.  Any ideas what is preventing me to add these users either via the web client or the Windows client?

 

Thanks

9 Replies
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Did you check Guest User setting configured on Azure AD?


@Zev Yanovich wrote:

Whenever I try to add some external users to a Teams team.  I'm seeing that their email address gets converted to Unknown User as soon as I select to add their email address.  Any ideas what is preventing me to add these users either via the web client or the Windows client?

 

Thanks


 

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Our Teams allows guests BUT 2 people I have tried adding change to Unknown User as soon as I add them.  If I go to Outlook to add them to the Office 365 group they show that they are added in with their correct names.  I also used the Teams & Skype admin center to check to on them but they are not listed there as users, neither is my gmail account which is functioning as a guest in Teams but my Hotmail account is listed there as a guest Teams user. The guest users are not able to access Teams.  I am trying to contact them to see if they have access to the other apps like SharePoint.  Does anyone know what I can do to fix this.

 

I added my personal gmail account to the Team just to make sure guests were getting in OK and I had no issues.  I also tested adding in a guest from another O365 tenant that did NOT have a Teams license and that worked PERFECT also.  I am not sure what else to do to troubleshoot this.  I will escalate to support soon but often times the amount of time spent on the phone with MS is beyond my tolerance in a day.  HELP

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Have you ever found solution to a problem?
I have exactly the same issue. It's working fine for some external users, but some change to Unknown and i can't add them to another Teams. I get error: Unknown User
We ran into an issue. Please try again later.

Best regards
Kasia
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Kasia,

Our issue has been resolved however I am not positive what solved the issue.  I am an Office 365 Global Admin so I was able to go into AzureAD and check on the 2 unknow users.  One user it said had not accepted the invitation so I resent it from AzureAD and they go in.  The other user I noticed was a B2B connection.  I deleted them from AzureAD (they were a guest only) and then re-invited them into the Team.  In all honesty I was never sure if it was a temporary Microsoft glitch the 1.5 days of seeing unknown user or if my steps fixed the issue.  Sorry if this is not that helpful.

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This did it for me. Deleting the external users from from Azure Users allowed me to readd them in Teams.

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Worked for me too!
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@Christine Stack @Zev Yanovich 

We also got the external guest error "we ran into an issue" when adding a person to Microsoft Teams.

We didn't have any luck with your solutions, but they gave us enough to find the following (which I hope helps others).

 

Situation : Had a project using a Microsoft Team, external consultants were added to the project using their email addresses e.g. bob.McLastname@bobconsulting.com

Some months later a new project was started with the same real people but the consulting company had been bought out so now Bob's email address became e.g. bob.McLastname@reallybigconsultingfirm.com

 

Trying to add bob.McLastname@reallybigconsultingfirm.com to the new project Teams site gave the "we ran into an issue" adding a guest error.

 

In Azure AD we searched for Bob McLastname and found

- bob.McLastname@bobconsulting.com

When we deleted bob.McLastname@bobconsulting.com from Azure AD we were then able to add him to the new project team without error using bob.McLastname@reallybigconsultingfirm.com

 

Perhaps @Chris McNulty could bump this to the Teams Error message folks.

My use case would be : As a Microsoft Teams owner, I need to give my Tennant Admin a useful error message rather than "we ran into an issue" when trying to add a user via an email address which doesn't match an existing Azure AD guest user.

My guess is that both email addresses are associated with the same Microsoft Office 365 license thus causing a conflict, hence the error and why our fix worked.

 

 

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What if you are not an Azure AD administrator?

@Christine Stack 

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@Stephaniesmithif you are not an AzureAD admin I think you will need to ask your admin for assistance. 

 

I have heard that some people are just sending a file share to the guest (not an anyone link but a link that requires sign-in/sign up)  just so they get registered into AzureAd.  After they have successful access to a file share from OneDrive or SharePoint in your tenant THEN and maybe wait a few hours....then they are able to successful add them to a Team.

 

Give it a try and report back here.