Archive Migration fails for the 'User Display Name' due to Source and Target Mailbox having the same ArchiveGUID (4377116)

Archive Migration fails for the 'User Display Name' due to Source and Target Mailbox having the same ArchiveGUID

Errors from ODM Mailbox Migration :

Archive Migration fails for the 'Username' due to Source and Target Mailbox having the same ArchiveGUID.
For more information please refer to Quest KB 4373754

No valid accounts specified for mail migration

 

Upon verification using PowerShell, contrary to the error message, ArchiveGuid from Source Cloud is actually different from Target Cloud :

Source Cloud :

Get-Mailbox -Identity <Username> | FL ArchiveGuid

ArchiveGuid : XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX


Target Cloud :

Get-Mailbox -Identity <Username> | FL ArchiveGuid

ArchiveGuid : YYYYYYYY-YYYY-YYYY-YYYY-YYYYYYYYYYYY

Exchange setup is of hybrid type whereby Archive Mailbox is not properly configured at target.

Upon verification using PowerShell, ArchiveGuid from Target OnPrem is different from Target Cloud :


Target Cloud :

Get-Mailbox -Identity <Username> | FL ArchiveGuid

ArchiveGuid : YYYYYYYY-YYYY-YYYY-YYYY-YYYYYYYYYYYY


Target OnPrem :

Get-Recipient -Identity <Username> | FL RecipientTypeDetails, ArchiveGuid

RecipientTypeDetails : RemoteUserMailbox

ArchiveGuid : ZZZZZZZZ-ZZZZ-ZZZZ-ZZZZ-ZZZZZZZZZZZZ
or
ArchiveGuid : 00000000-0000-0000-0000-000000000000

OnPrem :

If ArchiveGuid is not all zeros :

Set-RemoteMailbox -Identity <Username> -ArchiveGuid "YYYYYYYY-YYYY-YYYY-YYYY-YYYYYYYYYYYY"


If ArchiveGuid is all zeros :

Enable-RemoteMailbox <user mailbox ID> -Archive

Set-RemoteMailbox -Identity <Username> -ArchiveGuid "YYYYYYYY-YYYY-YYYY-YYYY-YYYYYYYYYYYY"


Kindly refer to this external Microsoft Technote for more explanation on resolving this issue :

Resolve validation errors for an archive mailbox
https://learn.microsoft.com/en-us/exchange/troubleshoot/administration/validation-errors-for-mailbox-archive-guid