Unable to move Lync2010 Users to Lync2013 Pool

Issue :-

unable to move certain users to the new Pool. AD-Permissions on these users are inherited.

I'm getting the following message inside of the Power Shell when trying to move:

PS C:\Users> Move-CsUser -Identity "user" -Target "newpool"

Confirm

Move-CsUser

[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help

(default is "Y"):Y

Move-CsUser : Move in progress. User "sip:Uer@dmain.com" is being moved

from "Oldpool" to "xyz-pool".

At line:1 char:1

+ Move-CsUser -Identity "user" -Target

"newpool. ...

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~~~

    + CategoryInfo          : InvalidOperation: (CN=user...dmain,DC

   =com:OCSADUser) [Move-CsUser], MoveUserException

    + FullyQualifiedErrorId : MoveError,Microsoft.Rtc.Management.AD.Cmdlets.Mo

   veOcsUserCmdlet

when tried from control panel getting the same error message:-

Solution:- go to the old pool server try Power Shell command to move the user to the XYZ-pool first. Then move it to the oldpool. Now you can run the original command of moving user from old pool to the newpool