Error : “Failed while updating destination pool”, when attempting
to migrate a user from a Lync Server 2010 pool to Lync Server 2013 pool .
This all too common error has been around since OCS 2007. The reason why you are unable to move the
user is because of the inheritable permissions on the user’s account
object. Open up adsiedit.msc, navigate
to the user’s account, open up the properties and review the Advanced Security
Settings of the object. Uncheck “Include inheritable permissions from this
object” s parent setting for the user account.