With MC526130, Microsoft changed the default configuration for new tenants to use Azure B2B integration for SharePoint Online and OneDrive, which funnels what used to be ad hoc external recipients into an Azure AD guest registration/management flow. With MC525663, Microsoft is switching SPO site sharing to use Azure B2B as well. The Azure B2B integration feels inevitable for existing tenants, and since we are still in our early migration phase, we enabled it via command shell to make it part of our sharing strategy from the start.
Now that Azure B2B is enabled, how can we tell which SharePoint admin center settings are no longer applicable?
