Lync-Cannot Synchronize Address Book


Lync Contact list isn’t updated. The Lync 2010 client or Lync 2013 client client does not download the corporate address book and displays a notification: “Cannot Synchronize Address Book”


Force a contact list update to make sure that your information is synchronized. To this, follow these steps:

  1. Locate one of the following folders, depending on your operating system:
      1. For Lync 2013:
        • Windows 7 and Windows 8: %localappdata%\Microsoft\Office\15.0\Lync\sip_<sign-in name>
      2. For Lync 2010:
        • Windows 8, Windows 7, or Windows Vista: %localappdata%\Microsoft\Communicator\sip_<sign-in name>
        • Windows XP: %userprofile%\Local Settings\Application Data \Microsoft\Communicator\sip_<sign-in name>
  2. Delete the following files:
      • Galcontacts.db
      • galcontacts.db.idx
      • CoreContact.cache
      • ABS_<sign-in name>.cache
      • Mfugroup.cache
      • PersonalLISDB.cache
      • PresencePhoto.cache
  3. Restart Lync, and then wait for 30 minutes for resynchronization to finish.

For office communicator and Lync Client, you can follow KB Solution

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