Cleanup
If the migration is successful and the old fields and tables are no longer needed, these can be cleared via the "Cleanup UDFs" and "Cleanup UDTs" tabs.
Warning
Only do this when these tables and fields will no longer be used! Any reports making use of this data will no longer work.
There is also the option to clean up SQL Stored Procedures and SQL Views.
Simply tick what can be removed and the command is executed via the “Execute” button.