Hi Mike,
Enprise tables can't be updated using the standard DI API objects as they are separate SQL tables, rather than UDTs or UDOs. You could use a recordset object and use SQL statements (ie updates or insert statements) to update the tables. I must stress though that updating any third-party tables is not without risk and I'd strongly recommend you confirm with Enprise that they will support their addon at your site if you do this. In some cases, the addon vendors have their own APIs or provide details on what they do or don't allow when customising the logic in their programs. Other addon vendors might not allow any custom tweaks to how their addon works.
Kind Regards,
Owen