Syncing your calendar lets the system to know when you're actually free, to avoid double bookings, and you also want your online calendar to accurately reflect your schedule.

However, if you use a different calendar than the three listed above, you can still sync it by following a two-step process:

• First send CoachAccountable appointments to your calendar using the Appointment Calendar Feed.
• Then get appointments from your calendar into CoachAccountable by Importing Your Online Calendar