How to exclude Office 365 Global Admin from password expiration policies

Issue: the password expiration of the Office 365 global administrator account will cause Azure AD Connect and DirSync to stop synchronizing on-prem AD to Office 365 Azure AD.

Prevention: One solution is to exclude your Office 365 global admin account from password policies and set it’s password to never expire.  Note: Always have a very strong password on your Office 365 global admin account.

  1. launch an instance of Office 365 PowerShell connected to your tenant
  2. Run the following command:
    Set-MsolUser -UserPrincipalName -PasswordNeverExpires $true

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