You can get answers for most of your Skype for Business Online questions in the article Check for common causes of Skype for Business Online sign-in errors. Troubleshoot admin issues for Skype for Business Online Here is a list of topics that can help you fix problems, whether you're administrating Skype for Business Online or helping your users solve their problems. Sometimes things aren't working like you expect. Remember that a successful upgrade aligns technical and user readiness, so be sure to leverage our upgrade guidance as you navigate your journey to Teams. If you want to upgrade your organization to Teams yourself, we strongly recommend that you begin planning your upgrade path today. If you haven't upgraded your Skype for Business Online users to Microsoft Teams before that date, they will be automatically scheduled for an assisted upgrade.
Skype for Business Online will be retired on July 31, 2021.
