Your iPhone will probably also have synchronized and will have an empty address book and calendar.6)-In both iCal and Address Book, Import the archives what you exported in step 1. Approve it for both iCal and Address Book, and when it finishes now your Mac's iCal and Address Book should also be empty. It may/should warn you that it's deleting many entries.
#GOOGLE BACKUP AND SYNC DUPLICATES MAC#
At the end of this process, all your calendar and contacts entries should be gone.5)-Go back into MobileMe settings on your Mac and re-enable the "Synchronize with MobileMe" option. select each calendar in the list on the left, then click the little gear icon at the top right/middle of the page and choose delete.
![google backup and sync duplicates google backup and sync duplicates](https://i.stack.imgur.com/Tyffc.png)
In System Preferences-> MobileMe->Sync disable the "Synchronize with MobileMe" option at the top.Also, when in that area, go into the "Advanced" settings and set the "show alert" level to something low like 5% or 25% so you are asked for approval when MobileMe is trying to make major changes.4)-Log into the MobileMe In Calendar it's a bit less obvious. But, I had to manually delete the duplicates of each calendar).3)-Turn Off Mobile Me Sync. My Address Book was okay, because I didn't let it sync and create duplicates. If they do, you'll want to clean them out first to get a pristine backup. in Address Book it's File->Export->Address Book Archivein iCal it's File->Export->iCal Archive(This assumes your Mac calendar/contacts don't have duplicates. It will sync via Mobile Me, so you don't need to have it sync via iTunes too.2)-Make a backup of your Calendars and Address Book. Run an iTunes sync between Google and the iPhone (do not force a replacement of any contacts).or1)-Make sure your iPhone Settings in iTunes have Address Book and Contacts synchronization disabled. Go back to iTunes, and change the Contacts sync from Yahoo to Google.10. in iTunes, go to Info / Advanced /Replace information on this iPhone, and check the box for Contacts).9. Run an iTunes sync between Yahoo and the iPhone, forcing a replacement of all contacts on the iPhone with the Yahoo data (i.e. I don't know if I had to do this, but I ran iTunes sync a few times like this, just to make sure duplicates would not be reintroduced.8. All contacts should now be migrated to Yahoo, without duplicates.7.
![google backup and sync duplicates google backup and sync duplicates](https://i.ytimg.com/vi/yJkOWh_Z8SE/maxresdefault.jpg)
Go back to iTunes, and change the Contacts sync from Google to Yahoo.6. There should be no duplicates on the iPhone.4.
![google backup and sync duplicates google backup and sync duplicates](https://www.blueprint-analytics.com/wp-content/uploads/2018/07/Screen-Shot-2019-12-21-at-15.59.17.png)
in iTunes, go to Info / Advanced /Replace information on this iPhone, and check the box for Contacts).3. Run an iTunes sync between Google and the iPhone, forcing a replacement of all contacts on the iPhone with the Google data (i.e. Ensure that all duplicates have been removed from GMail Contacts.2. Here are the details ( back everything up first).1. As long as you have all you contacts on google, the next time you go into you iphone address book they will re-populate, and you won't have any duplicates. temporarily utilize Yahoo contacts. Now follow the steps again to set up a google sync account using exchange, only this time when it asks you if you want to keep your existing numbers or delete them choose delete. Go to SETTINGS -> Mail,contacts, calendars -> then to your google sync account (the one with the contacts, calendars underneath it) Delete this account.