Further to the sneak peek of the Teams functionality to manage employee leave requests by Laurel Reitman during Microsoft Business applications summit on 6 May 2020, the functionality is now available in public preview for customers to test and play on sandbox and trial environments
Please find more details on the Microsoft docs site: Human Resources app in Teams
Steps to install the teams app can be found on: Manage leave requests in Teams
Find the details of how to manage app permission policies: Manage app permission policies in Microsoft Teams
Are you curious to learn all about the latest enhancements of Dynamics 365 Human Resources in 2020, read my blog and LinkedIn article: Dynamics 365 Human Resources - What's new?