There are some limitations to be aware of when syncing with iCloud.
- All calendars must be hosted on iCloud.
- Calendar Groups are not synced.
- Stickys, Journals, and Graphics in BusyCal will sync between BusyCal clients through iCloud, but will appear as all-day events in other clients (such as iCal or the iPhone Calendar). If you edit these events in a non-BusyCal client, such as iCal, they will be changed to all-day events.
- Attachments in BusyCal will sync between BusyCal clients through iCloud. If you edit an event with attachments in iCal, the attachments will be deleted.
- Tags applied to events in BusyCal will sync between BusyCal clients through iCloud, but will not appear in other clients (such as iCal or the iPhone Calendar). If you edit an event that contains tags in iCal, the tags will be deleted.
- Repeating To Dos can be synced with the iPhone using the Reminders app or BusyToDo and changes made on the iPhone will sync with BusyCal. You cannot create or edit repeating To Dos in iCal. The repeating To Dos will appear in iCal, but are read-only and cannot be edited. If you edit a repeating To Do on icloud.com, it will destroy future occurrences of the repeating To Do.