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# TroubleShoot Exchange Address Book not updating

Articles on: [Exchange](/en/category/exchange-15wo40y/)

*   Check through Exchange PowerShell test if OAB get passed.
  
  
*   If passed force update OAB.
  
  
*   Wait for 24 hours to let the Outlook client fetch the latest OAB.

Updated on: 31/01/2023