Hi @rhc
I don’t think there’s an option for this for Zapier itself, although there’s an option to change things in the standard API, which was changed a few years back.
Where Terms or Notes is provided, but empty, it’s taken literally. Whereas if they’re omitted completely, we use the account default (see here. If you have this the option to remove the field completely, I would try that to see if it makes a difference.