Sincronizzare scheda contatti dell'account di posta elettronica con active directory

For an Exchange-backed organizational contact card, update the user's directory attributes rather than creating separate personal contacts in everyone's mailbox. In Active Directory, the office number is telephoneNumber and the mobile number is mobile; PowerShell exposes these through Set-ADUser's OfficePhone and MobilePhone parameters. Test with one user first and verify the saved values. For on-premises Exchange, check that user through the Global Address List. If your mailboxes are in Exchange Online with synchronized identities, also verify that directory synchronization carries the changes into Microsoft Entra ID. Then compare the person's card in Outlook on the web with classic Outlook. Cached Outlook can show older address-book data, so download the updated Offline Address Book after the server has generated it. A locally saved contact can differ from the organizational directory entry. Confirm your Exchange deployment and Outlook version if the directory values are correct but the card remains unchanged.