The export is the record you keep
After the update, the registrant list exports as CSV or PDF: names, emails, the statuses you marked, and any custom field you asked for โ a fund name, a region, whether someone is a first-time attendee. That file is the practical output of the session, and the thing you hand over when someone asks who was invited.
One clarification is worth stating plainly, because this is where invitations get careless. There is no approval step on registrations; the controls are the password, the cap and your own list. Attendance reflects what you mark, not a verified headcount, and the record you keep for anything formal is your own document. The export supports that work; it does not replace it.