Migration of a Microsoft Bookings Scheduled Mailbox using ODM is not supported (4266127)

When using On Demand Migration (ODM) to migrate a Scheduled Mailbox account to the target tenant, the following error is logged:

• Unexpected exception while loading properties for items(The type of the object in the store (Booking) does not match that of the local object (CalendarItem).)

If the Scheduling Mailbox is manually created on the target and the accounts are mapped within ODM, the following errors are logged when the migration occurs:

• Unexpected exception while loading properties for items(The type of the object in the store (Booking) does not match that of the local object (CalendarItem).)
• Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
• Object reference not set to an instance of an object. Object reference not set to an instance of an object. (Object reference not set to an instance of an object.)

Note 1: Migrating an empty Scheduled Mailbox produces no errors.

Note 2: Regular user's mailbox may also contain MS Bookings items within the Calendar. Migrating such mailbox will also generate same type of errors but rest of mail items should migrate successfully.