Exchange user information not updating from AD

Question

I just recently updated Job Titles, Location, and Phone numbers for users in Active directory. For some reason
not all of the information is be transferred to Exchange. I noticed this because it isn't updating in the GAL either. I went to Exchange Management console and the information isn't there either. I look at AD on that same machine and it's all there. What would
be causing Exchange not to sync this information. How can I check to see what is broken. I'm not really know how this is supposed to work.

Answer 1

First off, Exchange has no directory information of its own - all directory information that it has, it gets from the Windows Active Directory.  It will hold permission information for a time period, but no other directory settings are saved automatically. 
So if you are changing things in the Active Directory and you aren't seeing it in Exchange, there are two possible reasons:  1) what you are changing in AD isn't the same as what you think you are changing in Exchange, and 2) your Exchange system is reading
from one domain controller and you are making the changes while connected to another (and directory replication hasn't completed).  In order to check for #1, you say you changed the fields above - what do you see if you change those same fields on the
Exchange system?  Do this on one test account, then open the account in ADSIEdit to see what all of the fields are set to.  If the reason is #2, wait 15 minutes and see if the information is updated.
As for Exchange not updating the GAL, the GAL is taken straight from the Windows Active Directory in real time, so we're back to #1 and #2 above - for the most part.  However, the Offline Address Book that you see in Outlook is only updated (by default)
late at night and downloaded when Outlook is first opened the next day.  So if you are checking for changes in Outlook, Outlook will use the Offline Address Book by default, but you can force it to check with the online address list on a case-by-case
basis by changing the address list.  So make sure you are selecting one of the non-default address lists to find the information, not the default.