Microsoft Teams is a chat-based workspace that’s part of Office 365. MeisterTask is available as a tab in Microsoft Teams, which you can add to any of your team's channels. This allows you to display and manage project boards right inside Microsoft Teams.
Please note: Currently only Business and Education Accounts can use our Office 365 login. So called Microsoft Accounts (previously called Microsoft Live Accounts) can't access the Office 365 login, thus Office 365 Home subscriptions can't use it either.
Make sure that 3rd party apps are not disabled by default in Teams. You can check this by going to the Office 365 Admin Center/Portal and enabling/giving permissions to our app as is shown in the following image.
Take a look at this video to see how it works: