New Site Collection Sharing Settings SharePoint Online External Users

Hi

 

I have recently noticed the following new changes in SharePoint online for external users.

 

https://support.office.com/en-gb/article/use-office-365-sharepoint-online-as-a-business-to-business-b2b-extranet-solution-7b087413-165a-4e94-8871-4393e0b9c037

 

https://techcommunity.microsoft.com/t5/SharePoint-Blog/Security-at-the-Site-Collection-Level-in-SharePoint-Online/ba-p/115597

 

The first article claims that these new settings have  "The ability to restrict partner users to a single site. They cannot search for or view any content or users outside of their site "

 

Has anybody tested this setting yet? We are currently evaluating it to see if a partner user can be effectively isolated in a site collection so they can only see other users in that site collection.

 

This is a bit like the old stsadm people picker command to limit the people picker to a specific ou on a site collection.