How to Update Outlook Address Book
In case new created user/groups cannot automatically been synced up, you may need to update Outlook Address Book. Please try the following steps to do this:
Step 1
Open Outlook
Step 2
Select Send/Receive on the top Menu
Step 3
Select Send/Receive Groups
Step 4
Click on “Download Address Book”
Step 5
Click OK on the pop-up window
Step 6
The popup window will automatically close after the update has done, if you still cannot find the contact info of that user in address book, please contact IT.