This method allows you to force a rather than just incremental changes. Global Address List Not Updating? (5 Proven Solutions)

The Offline Address Book (OAB) is a local copy of the server-side directory. You may need a fresh download if: are not showing up in the directory.

There are two primary ways to trigger a manual download in the classic Microsoft Outlook desktop application. Method 1: Using the "File" Menu (Recommended)

(like phone numbers or job titles) are incorrect.

are failing to resolve or showing the wrong members. Sync delays have exceeded the usual 24–48 hour window. Step-by-Step: How to Re-Download the GAL