Currently, with MS Teams, you can:
Request time-off.
Approve/Reject time-off.
Clock in/out, mark breaks, and projects.
Check information about your time worked.
Check information about your own and company-wide scheduled absences.
Check your entitlement balances.
Receive personal notifications on the MS Teams.
Receive notifications on the MS Teams channel about:
upcoming absences
remote work
birthdays
work anniversaries
public holidays
clocking in/out and breaks
If you would like to use the Calamari app in MS Teams (web, mobile), check out the following article:
To enable receiving group notifications on MS Teams channels,
check this instruction:
Example:
Check more details about setting up notifications: