When connected to an Exchange server, Outlook will automatically synchronize the address book once every 24 hours.
However, if you need to the address book to update sooner you will need to force an update by manually starting the synchronization process.
Step 2: Now, enter a name for users new email profile.
Step 3: After this, selecting a new email account Step 4: Must keep in mind to choose the correct type of account.
Kindly suggest me any solution how to solve this Outlook OAB not updating issue?