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Título
ODM fails to Connect to Source mailbox: Error: "object contains outdated information. The mailbox may have been moved recently" -
Descrição
Consistently having issues with migrating mailboxes. Looking for some guidance.
I have few mailboxes that have had this error for weeks and will never migrate. I have some that connected 12-6-21 and stopped 12-7-21 and still will not migrate. They connect periodically but then don't connect the next day. It's weird.
I have no idea what the issue is, users can connect to source mailboxes via OWA, Outlook, and Active Sync devices.
I always see these 3 errors.
Error1: Unexpected error on source mailbox USER@domain.com. Requested value ErrorConnectionFailedTransientError' was not found.(Requested value 'ErrorConnectionFailedTransientError' was not found.)
Error2: Requested value 'ErrorConnectionFailedTransientError' was not found. Folder Path: ArchiveMsgFolderRoot Requested value 'ErrorConnectionFailedTransientError' was not found. Folder Path: ArchiveMsgFolderRoot (Requested value 'ErrorConnectionFailedTransientError' was not found.)
Error3: The specified object was not found in the store., Can't connect to the mailbox of user Mailbox database guid: abc123 because the ExchangePrincipal object contains outdated information. The mailbox may have been moved recently.
Folder Path: ArchiveRecoverableItemsPurges
ErrorCode = ErrorItemNotFound
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Causa
It's possible the source mailbox was previously migrated from another source environment or from on on-prem environment and has incorrect attribute values.
If using ODM-AD Directory Sync and synching Exchange attributes up to the AAD tenant, the ODM migration will interpret these mailboxes as an on-premise Exchange mailbox for the user in scope. ODM will not create the target tenant Exchange mailbox as a result - even though the user was already using an Exchange Online mailbox in the source environment
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Resolução
Check the source user account attributes MsExchMailboxGUID, msExchArchiveGUID and msExchArchiveName and make sure these are for the cloud mailbox, and not from an on-prem mailbox.