http://blogs.technet.com/b/hot/archive/2012/04/26/directory-sync-cannot-update-distribution-group-after-office-365-migration.aspxSummary After you migrate BPOS to Office 365, you may notice Directory Synchronization does not update Distribution List (DL) group as expect. Additionally, there is no information listed in the Dirsync Error notification email. This issue willen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/hot/archive/2012/04/26/directory-sync-cannot-update-distribution-group-after-office-365-migration.aspx#3494890Fri, 27 Apr 2012 09:03:40 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3494890KB author<p>Hi Wes Kroesbergen,</p> <p>Thanks for your contribution~</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3494890" width="1" height="1">http://blogs.technet.com/b/hot/archive/2012/04/26/directory-sync-cannot-update-distribution-group-after-office-365-migration.aspx#3494703Thu, 26 Apr 2012 12:39:31 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3494703Wes Kroesbergen<p>Alternatively, you can open Active Directory Users &amp; Computers, turn on Options-&gt;Advanced Features. Open the user object properties, and go to the Attribute Editor tab. Enter the display name directly. I&#39;ve also found that the MailNickname attribute generally needs to be set as well.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3494703" width="1" height="1">