Error: 'This operation is not available for Intra-Site migrations'. (NETIQKB23077)

fact
Exchange Migrator 1.x

fact
Exchange Migrator 2.x

symptom
Error: 'This operation is not available for Intra-Site migrations'.

symptom
Exchange Migrator will not allow me to Undo migrations in an Exchange 5.5 to Exchange 2000/2003 Intra-Site (within the same site) migration scenario.

cause
Exchange Migrator cannot perform the 'Undo' in an Intra-Site migration scenario.  This is primarily because the mailbox is actually moved (not copied) from one server to another.  In all other supported scenarios (Inter-Site and Inter-Org), the mailbox is copied and therefore the Undo is possible. 

fix

To undo a migration in this Intra-Site scenario, the mailbox needs to be manually moved from the target server back to the source server using a tool such as Move Mailbox.

A listing of scenarios supported by Exchange Migrator is included in the following article.

• https://www.netiq.com/kb/esupport/consumer/esupport.asp?id=NETIQKB2181

note
For information about Move Mailbox please reference the appropriate Microsoft documentation.

Formerly known as NETIQKB23077