My client believes that sending an invitation email to register on our invite-only site should mean their email is confirmed.
Without changing the global configuration which requires a confirmation email ( still required for importing groups of users or otherwise adding them manually ), is there a trigger I can use at registration to set their email address as already confirmed?
I can't tell if onAfterUserRegistration trigger is too late to avoid another confirmation email. I also can't tell when [user_id] will be available for a query ; I assume onBeforeSaveUserRegistrationRequest means no user_id created yet.
If there's another way to accomplish this without using auto-actions, please do tell.

Yeah, I agree. I will run this by the client.