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Guest users can't send attachment on Microsoft teams

Ivan Bosnić 36 Reputation points
2021-01-20T12:09:18.42+00:00

We have Guest users on our Microsoft teams. They can send attachments in their messages when they're sending them in channel discussion but they can't send attachments in private chats on ms teams. As an admin, I can't find a way to enable it

Microsoft Teams | Microsoft Teams for business | Other
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  1. Bruce Chocolaad 15 Reputation points
    2023-02-15T10:16:06.4933333+00:00

    What I noticed with the Guest (B2B) setup and 1:1 chat conversations.

    • When using MS Teams on the desktop or browser, you are unable to add attachments while in a 1:1 chat with a Guest.
    • When using the MS Teams app on my Android phone, I am able to share attachments while in a 1:1 chat with a Guest.

    This means that the functionality is available but the MS Teams desktop app and browser app is lacking this function.

    Microsoft should be able to fix this easily once they put more resources on this issue. This is 100% an issue, otherwise sharing would also not work while on the mobile app version.

    3 people found this answer helpful.
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  2. Sharon Zhao-MSFT 25,771 Reputation points Microsoft External Staff
    2021-01-21T02:29:49.17+00:00

    @Ivan Bosnić ,

    Guest has no such capability. Guest can only send attachment files in Teams chat. The following image list the capabilities of guest:
    58915-image.png

    For more information of guest capability, please refer to this article.

    As michev said, you could vote in the Teams UserVoice. Currently, the feature team is under review and considering all options for this feature. Any update will be shared in this link.
    Your time, understanding and cooperation will be highly appreciated.

    If the response is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    3 people found this answer helpful.
  3. Vasil Michev 126.1K Reputation points MVP Volunteer Moderator
    2021-01-20T12:43:07.383+00:00

    That's the expected behavior, as attachments sent in 1:1 chats are stored in user's personal ODFB, and guests dont have such provisioned. Microsoft is looking into enabling support for this, so you might as well vote it up here: https://microsoftteams.uservoice.com/forums/555103-public/suggestions/32865823-guests-should-be-able-to-send-files-in-private-cha

    1 person found this answer helpful.
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