Mailbox migration failing

John Ballance
John Ballance used Ask the Experts™
on
Mailbox Migration failing with below error, we are migrating between 2 trusted domain using Exchange native migration.

We created this migration job 3 days ago but one of our engineer deleted it before we could Complete the migration, the job had synced succesfully.

So I recreated the Migration Job and everytime it fails with the below error, I have tried targeting a different database on the Target but same issue.

I have also confirmed the source and target Archive GUID's are the same as many web articles suggest this is the issue.

"The move request for user 'USER NAME' is invalid: Target archive database for the move doesn't match. Active Directory value: '(null)'. Move request value: 'DB01'.. --> The move request for user 'User Name' is invalid: Target archive database for the move doesn't match. Active Directory value: '(null)'. Move request value: 'DB01'.
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timgreen7077Exchange Engineer
Distinguished Expert 2018

Commented:
Normally during a cross forest migration a disabled user account is created in the target domain. Try deleting that account if it was created and start again as new move.
Saif ShaikhServer engineer

Commented:
Do you have an archive mailbox present for users in exchange. If you are doing a cross forest migration not hybrid way, then

Run PrepareMoveRequest script first and then ADMT and the move the mailboxes using below command:

New-MoveRequest -Identity "Distinguished name of User in Target Forest" -RemoteLegacy -TargetDatabase "E2K10 Mailbox Database Name" -RemoteGlobalCatalog "FQDN of Source DC" -RemoteCredential $Remote -TargetDeliveryDomain "Target domain name"

Reference Article- https://blogs.technet.microsoft.com/exchange/2010/08/10/exchange-2010-cross-forest-mailbox-moves/
Professional Services
Commented:
We are using FIM to manage shared GAL and in this instance MIM had created a contact for this user before the Mailbox migration had completed meaning I could not complete the migration until the cross-forest contact was deleted from target domain

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