Many of you have made heavy use of the calendaring features and the ability to share email folders in Zimbra. Because of that, we want to draw your attention to 3 limitations with the migration that may affect you:
1. If you have been using “secondary” (or “sub”) calendars in Zimbra, separate from the main calendar named “Calendar,” and you have invited others to appointments on those calendars, after you have migrated any changes to those appointments won’t notify the invitees (the link between the original appointment on your calendar and the copy on their calendar gets broken). This does not affect your primary calendar, and won’t affect new appointments you create in Google Calendar. Recommendation: You may want to change the subject line of these appointments (by adding something to indicate the appointment came from Zimbra) so you can manually update invitees if you need to.
2. If you use “recurring events” in your calendar, some changes to a single event (an “exception” to the series) will not migrate. Exceptions where the date and/or time changed will migrate correctly; exceptions where there were changes to the subject line, the list of invitees, the location, or the description will lose those changes and will reflect the original information for the series. This is only an problem with migrated appointments; new appointments created in Google Calendar will behave correctly. Recommendation: You may want to print two or three months of your calendar for reference before you migrate (note that this will show you exceptions to subject line and location, but not changes to the description or the invitee list).
3. If you have been sharing an individual folder (including your Inbox) with other people, that sharing will break when you migrate and you will not be able to recreate it (Gmail does not support sharing labels). Recommendation: Talk to us about other ways to meet your needs.