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krishna2320's avatar
krishna2320
Brass Contributor
May 01, 2020

Internal Teams user showing as External

We are experiencing strange behavior in Teams, sometimes few internal users are showing as external user. This is mostly happening in Teams Mobile app.

 

Any idea pls?

  • Fabian76's avatar
    Fabian76
    Copper Contributor

    krishna2320 , we experience the same issue.
    How does your environment look like and in what mode is teams running?

    We are still in hybrid with legacy Lync 2010 (proxy also used for federation), the tenant is in Teams island mode but some users are in Teams Only mode.
    Would be helpful to understand if the issue is related to our setup or not.

    • krishna2320's avatar
      krishna2320
      Brass Contributor

      Fabian76  sorry for the delayed response, it's Teams Only Mode. we are completely online no Lync/SFB servers.

      • Fabian76's avatar
        Fabian76
        Copper Contributor

        thank you!

        So it seems to be a general issue not related to any special scenario we are in currently.

  • francorg's avatar
    francorg
    Copper Contributor
    Same here. Didn’t have time to do extensive debug on this.
    It seems it started 1-2 months ago.

    Did you open a support request to Microsoft?

  • Mark_Taratoa's avatar
    Mark_Taratoa
    Copper Contributor
    HI,

    We are experiencing the same issue on mobile devices. Has anybody resolved this yet?
    • Lars Jeppesen's avatar
      Lars Jeppesen
      Copper Contributor

      Mark_Taratoa unfortunately I can’t help, but just report we have same issue, it looks almost random, and occur only on mobile - a long term employee and O365/ Teams user suddenly show as (External)

  • Jaisson's avatar
    Jaisson
    Copper Contributor

    krishna2320 

     

    I experienced the same thing.  Follow this process to fix it:

     

    • Exit the Microsoft Teams desktop client
    • Right click on the Teams icon in your system tray
    • Click Quit
    • Launch File Explorer
    • Browse to: %appdata%\Microsoft\Teams
    • Delete all files and folders in said directory
    • Restart Microsoft Teams
    • Restart the Computer (last resort but I would try just step 7, it may be sufficient) 

    Jaisson

    • Nachofriend's avatar
      Nachofriend
      Copper Contributor

      Jaisson  Hi i followed your process i did remove files and folder from %appdata%\Microsoft\Teams

      and it worked for the use.

      Now after a month user is contacing me with the same issue.

       

      So it work as workaround but i need a better solution.Thanks

      • Berglez's avatar
        Berglez
        Copper Contributor

        So let me share my solution to this problem. I had this same error with one of my internal organization contact showing as external. Digging deep I found we had a contact created for that user pointing to his external private email (also Teams enabled).

         

        External contact email attribute was: username@CompanyNA.mail.onmicrosoft.com

         

        Checking AD attribute for that internal user showed attribute: targetAddress: username@CompanyNA.mail.onmicrosoft.com (basicly pointing to that contact address)

         

        Changing targetAddress attribute to: username@CompanyNA.onmicrosoft.com resolved our issue.

         

        Somehow our internal user get linked with that contact address.

         

        Hope that helps someone.

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