I want to prohibit Teams users in the members & visitor permission groups from sharing the site as well as sharing individual files.

I have a Teams site where I am a site owner. If I go to a channel, click the files tab, then open in SharePoint, I can view the SharePoint site files in a browser.

To attempt to prohibit site and file sharing, I tweaked the SharePoint site settings as follows: Settings > Site Permissions > Access Requests Settings

Uncheck box for: "SharePoint access request settings allow members to share the site and individual files" which also automatically on checks the box below it.

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After successfully performing this task, I was surprised to know that both teams site owners and members can still go to the underlying SharePoint site in a browser and share the site and individual files.

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What action must I take as a site owner to prohibit sharing this site as well as individual files?

1 Answer 1


The Team SharePoint site is a SharePoint site collection, you can turn off external sharing at the site collection level, but you need to have access to the SharePoint admin panel in O365 to do this.

  • Thanks for the response. I have admin access to the site collection site settings but how do I access the SharePoint admin panel in O365 to make the changes?
    – 12AX7
    May 9, 2019 at 13:39

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