Do you have Skype for Business setup in Hybrid to get the full functionality out of Teams?

<introEmbed body={<> If you have an on-premises Skype for Business (S4B) server, and you want to upgrade to Microsoft Teams, you need to setup S4B in Hybrid mode with your Office 365 tenant first. </>} />

Microsoft Teams is going to replace Skype and Skype for Business in the near future - which means an upgrade will be necessary soon.

1. To leverage the full features of Teams, you need to first setup Hybrid on your S4B on-premises server. This is no small task, and you can find the full instructions on how to do that here
2. After setting up a Hybrid environment, you will need to migrate all your users from S4B to Teams. This involves 2 steps (if you have an on-premises S4B):
3. Moving from S4B on-premises to S4B online (instructions);
4. Moving from S4B online to Teams (see instructions)