Exchange user batch migration from Exchange 2007 to Exchange 2013.

I am trying to finalize the migration of the last few users to our new Exchange 2013 infrastructure. I have a CSV with aprox. 900 users that I want to migrate. We have always had issues as our user domain and exchange infrastructure is in different domains in the same forest. When running commands, we need to always start with "Set-ADServerSettings -ViewEntireForest $true" or we get the same error as I am getting when trying to use a new-migrationbatch. Normally to move users we need to do the command "Get-mailbox -Identity <username> | new-moverequest" I am at a loss as to how to change this command "New-MigrationBatch -Local -Name LocalMove1 -CSVData ([System.IO.File]::ReadAllBytes("C:\Users\listofusers.csv")) -TargetDatabases db01" to get it to do the migration.

The error we get is MigrationTransientException: The operation couldn't be performed because object 'd66c5505-e839-4948-9544-ad46767b25c7' couldn't be found on 'GC'. --> The operation couldn't be performed because object 'd66c5505-e839-4948-9544-ad46767b25c7' couldn't be found on 'GC'.

The GC is the name of a Global Catalogue domain controller in the forest root domain ( where Exchange 2013 resides). It is also the schema master in my forest root domain.

I am hoping before I start a call with MS support.... someone out there my have been in a similar situation.

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Amit KumarCommented:
Not sure which RU you have on Exchange 2013. I found a bug in previous RU. so may RU7 can resolve your issue.

Please find this article

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Austin RobCommented:
I hope above suggestions clarifies your concern. If you wish you may also take a look on below given resources that might helps you to get in more details:Exchange 2010 Remote Move Request Error:

Cannot migrate mailboxes in a multiple domains environment in Exchange Server 2013 :

Earlier discussed thread:

Hope it helps you!
ICT-CherylMAuthor Commented:
Thank's Amit... I am running CU 6. I had so many problems updating to CU6 because of the Exchange 2007, I have stopped doing the updates. I will look at CU7 and see what it looks like for updating while running both versions.

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