Best approach to prevent external users from accessing sharepoint online
We have a classic team site collection, which contain 70 sub-sites (where each sub-site has unique permission), and some sub-sites have been shared with external users (mainly by adding the external user to the site member group or visitor group). now we need to remove 3 external users and prevent them from accessing sharepoint. But we are not sure which sub-sites has been shared with these users, so what is the best way to globally remove the external user and prevent them from accessing office 365 and specifically the sharepoint sites that have been shared with them? ThanksPerson or Group Column not returning external users in the assigned SharePoint Group
We have a few Person/Group columns in a document library that are configured to look up to users in a particular SharePoint Group. At some point today when trying to lookup a person, who is an external user, they are not returned to select, even though they are in the SharePoint Group Example below, the Assigned To field is configured to lookup to a SharePoint Group 'XXX Group'. In this group there are three people called Andrew (Andrew A, Andrew B, Andrew C). Andrew A & B are internal users, Andrew C is a guest user who the site has been shared with and added to 'XXX Group'. This has been working for over a year, but today i cannot get Andrew C to return in the list of People. Hope this makes sense! Is anyone else experiencing this?
