Data modeling and synchronization
Microsoft Exchange is the most popular option for businesses looking to host their employees' calendars and emails in-house. While this makes sense for them, it creates a nightmare for applications looking to integrate with that service.
What makes Microsoft Exchange truly unique – and even more difficult to integrate with – is that it sees everything as emails. Calendar events are emails with additional metadata, and calendars themselves are just email folders with this metadata attached.
This creates many vagaries when interacting with the Exchange Calendar API, and these are often at odds with how other calendar providers operate.
There are also subtle ways in which the many versions of Exchange differ, meaning you have to acquire and maintain significant amounts of knowledge to build a robust and reliable integration.
The Cronofy Calendar API encapsulates the learning from integrating with thousands of Exchange servers and processing millions of calendar events.