You cannot choose <archive name> because it is already the archive for mailbox <mailbox name>.

[Telegram_Sam]

We are in the initial stages of migrating from Exchange 2003 to Exchange 2010 and currently have EV 9.0.2 pointing to two different exchange Organizations.

I am disabling mailboxes in Ev against the old Exch server and after the migration is complete running the provisioning task against the new Exch server and then enabling the mailbox using the original archive.

When Enabling some users ( in particular where an archive is empty) I get the following error "You cannot choose <archive name> because it is already the archive for mailbox <mailbox name>".    This only happens when I manually select the archive to associate with the mailbox.

See screenshot...

Any advice will be appreciated.

[JesusWept3]

Find the user in the EnterpriseVaultDirectory database in the ExchangeMailboxEntry table and either delete the row or clear the DefaultVaultEntryID column and try again

[Telegram_Sam]

Thank you for your help.

I run

SELECT mbxdisplayName, DefaultVaultID FROM ExchangeMailboxEntry WHERE mbxdisplayName = 'mailboxname'

this is what I get...

I am not sure why there are two entries.  Most other users only have one entry.

[JesusWept3 · Accepted solution]

just do a DELETE FROM ExchangeMailboxEntry WHERE MbxDisplayName = 'your User'
then re-run provisioning and enable the user manually and assign them the existing vault

[Telegram_Sam]

Thank you Jesus

It is working.  Unfortunately I have quite a few to do.  Thank you for your time and your help.

[JesusWept3]

then what you can do is just DELETE FROM ExchangeMailboxEntry and delete all the rows, then run provisioning again, the prov task will automatically link users to their archives