Allow registrant to edit their registration detail

OCS registrant clicks on event registration lead to a message:
You are already registered for this conference and your registration has been paid. Please contact the principal contact in “About” if this is in error or you would like to change your registration.

Can I config my conference to allow them editing their registration details?

Hi @shawnhy,

What verison of OCS are you using? (Please include this in your posts.)

Alec Smecher
Public Knowledge Project Team