This artcile will discuss how to install and unexpected results when setting up QuickBooks Sync for Microsoft Outlook
To access QuickBooks Contact Sync in Outlook:
Click QuickBooks and choose Contact Sync.
To start the sync:
From the File menu, choose Utilities and select Contact Sync.
There may be issues preventing Outlook and QuickBooks Desktop from connecting properly. For example, someone may be editing a contact in QuickBooks Desktop while you're trying to synchronize, or QuickBooks Contact Sync may detect a difference in the time and date of when contacts were last updated that has been caused by changing time zones
Note: In the case of an extremely large list of contacts, make sure you allow enough time for Contact Sync to perform the synchronization.
If this doesn't solve the problem, you may need to delete the folders created by QuickBooks Contact Sync in Outlook and run another initial synchronization.