Busy Apps Help

BusyCal Mac - Using BusyCal with Exchange / Office 365

Microsoft Exchange servers provide a number of online services, among which is syncing and sharing calendars. BusyCal can connect to Exchange servers, using them to sync calendars across your devices and share them with others.
BusyContacts Mac - Using BusyContacts with Exchange

Microsoft Exchange servers provide a number of online services, among which is syncing and sharing contacts. BusyContacts can connect to Exchange servers, using them to sync contacts across your devices and share them with others.
FAQ - How do I setup Microsoft Teams in BusyCal?

BusyCal on the mac, starting with v2023.1.3, allows you to add Microsoft Teams meetings to all your Office 365 events.