First, you must enable your Office 365 Tenant to allow guests to access a Microsoft Teams team in your tenant. This is accomplished by navigating to the Microsoft Teams settings in the Office 365 admin portal. From within the admin portal navigate to Settings -> Services & add-ins -> Microsoft Teams.What apps are available for Microsoft Teams?
In January 2018, Microsoft launched the Microsoft Teams app store, in which users can search for third-party apps and use them in Microsoft Teams to augment their workflows. Some of the apps in the store include Asana, Trello and Zendesk.What is the Microsoft team app?