Note for Mac Users: Mac versions of Outlook do not connect to the Exchange server in the same way as PC versions.
Updates are pushed out to local copies of the GAL daily. Outlook begins the process of connecting to the Address Book and downloading all the changes since it was last updated, and applying them to the local copy of the GAL.
Firstly and fore mostly: If you do anything in Exchange: Apply the “cup of coffee rule”, never make a change then go and prove that change works straight away! However most of us work in the real world and you have a user who needs to use this mailbox yesterday! Then check the mailbox Exists (See Check for existence of mailbox sections below). Remember, if you are looking at the Global Address List in Outlook then you are NOT looking at the Servers Global Address List*.
Bear in mind, the process you need to follow is; 1. If you are using Outlook you may be in “Cached Mode”, and you are looking at a copy called the “Offline address book” This only gets updated Every 24 hours, and the copy on the server only gets updated every 24 hours at (by default).
As a faculty/staff member, your Outlook program automatically syncs with the Exchange server on a regular basis. For example, say a new person joins your workgroup.
You are unable to see his information in your address book.