Guest user cannot upload a file in a Teams channel

Kevin Egan 76 Reputation points
2025-01-29T18:40:13.31+00:00

Hi, I have a guest user who cannot upload a file into a standard channels in a Teams they are a member of. The SharePoint site allows external sharing and is set at 'new and existing guests' They are able to create a file form new but cannot upload a file? any ideas?

Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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  1. LiweiTian-MSFT 23,925 Reputation points Microsoft Vendor
    2025-01-30T01:56:39.8666667+00:00

    Hi @Kevin Egan

    Could you please tell me:

    Can guest users access files in the channel?

    Can guest users create new files but not upload new files?

    Please try to use Attach file in the chat box to upload the file to the channel.

    User's image

    You can also try to upload the file using the teams web client.


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