When trying to create a Model to do something like amend a field name and or add a field, I try and do the whole database at once, so I can stay consistent with naming.
Trying to "batch" update one field name and alias, I even ran a "if field exists" test. if it fails, then the whole model stops.
The iterator should be able to skip over the item that failed, complete the rest of the database/workspace, and then deliver a message of which ones failed, so they can be examined further.
