Hello there,
We have a two forest scenario, where we are migrating Mailboxes from the forest ABC.com to the XYZ.com.
Now, we already created the accounts using the ADMT tool, because we needed, at the time, to enable Lync Server on this new environment.
Now, we are migrating the Mailboxes, and everything is working fine, except for some user accounts.
First, I prepare the account migration with the Prepare-MoveRequest.ps1 Script, with the -UseLocalObject switch. After that, I run the update-recipient to add the legacyExchangeDN and the SMTP values to the ProxyAddress atribute.
Then, I start the move process using the New-MoveRequest cmdlet. Usually, that Works just fine. But for a couple of users, the Move Process stuck at 94% and then informs me that an error was found. When I ran the -IncludeReport switch on the MoveRequest, I get this message in the report:
Fatal error NonUniqueRecipientException has occurred
Message : Multiple objects with Sid S-1-5-21-1454471165-1450960922-839522115-11571 were found.
Now, I found the respective user for this SID and then realizes that they have a Calendar sharing (sometimes Contacts and other things as well). I removed that, and the error still occurs. The only way that I found to solve this was to remove this account from the XYZ.com forest (that was migrated by the ADMT tool) , migrate the Mailbox and then remigrate the user. Now, this is a problem since some accounts are conflicting with a Lot of diferente SIDs, which means that I need to delete a lot of accounts to migrate just one mailbox.
If somebody has a answer or a tip to solve this problem, I will be very grateful.
Thanks!