sync with Mac Outlook 2011 contacts very incomplete

sync with Mac Outlook 2011 contacts very incomplete

I set up the outlook plug in to sync my contacts between Zoho CRm and my Mac 2011 client.   It goes through the whole process but only seems to sync a small number of contacts.  Now, when I go back to the sync process, it says that the contats are already synced.  I have 6,000 contacts in my Outlook but am only getting 452 into Zoho. 

What an I do?  Did I miss something?