apfelsine on How to use external users in SharePoint Online (with a cost-free Azure Active Directory)

Hi there, I did follow your instructions and ran into an issue at step seven - User Login. My new partner user receives an error during login. That didn't work We're sorry, but steven@pinpointsystems.onmicrosoft.com can't be found in the apfelsine.sharepoint.com directory. Please try again later, while we try to automatically fix this for you. Any suggestion what the issue is ? Regards