I just installed Exchange 2013 on a domain with pre-existing Exchange 2007 SP3.
I'm trying to move a mailbox from the Exchange 2007 mailbox server to the new 2013 mailbox server. I created a Migration Batch for this via Exchange Administration Console, but get this error:
Error: MigrationPermanentException: Active Directory property 'homeMDB' is not writeable on recipient 'mydomain.local/Domain Users/User'. --> Active Directory property 'homeMDB' is not writeable on recipient 'mydomain.local/Domain Users/User'.