New Expiring Access Policy to Control Guest Access to SharePoint Online Sites
Microsoft has introduced a new feature to control how long guests have access to content shared with them in SharePoint Online and OneDrive for Business. You can configure a tenant-wide policy and then tune the policy for specific sites. The new control does not affect guest access gained through membership of Microsoft 365 Groups. Here's what you need to know about SharePoint Online's guest expiration policy
August 11, 2021