You must be the Site owner of the SharePoint site to add site content as a tab in Teams. on One thing is good to know: the Microsoft Teams actions in Flow are still in Preview. Make sure the site is set to private if it isn't already (this allows an Office 365 Group to be assigned to it). It looks like this as a tab:-. Find out more about the Microsoft MVP Award Program. https://thinkshare.sharepoint.com/sites/