Dirsync > Azure AD Sync fails if the dirsync account doesn't have contact info

[pete]

Spotted on the PFE blog:

 

https://blogs.technet.microsoft.com/askpfeplat/2016/11/07/two-unusual-azure-ad-connect-configuration-issues/

 

Gist is that if you're upgrading from dirsync > Azure AD and your dirsync account is old enough, the upgrade may not complete because your dirsync account is missing out-of-band contact info (phone and email). The fix is to log into Office 365 as the dirsync account and provide the information.