General FAQ - Using Username (PIN) Fields
A username or PIN (Personal Identification Number) is a unique value assigned to a profile. The username enables an attendee to register for future events without re-entering their profile information.
If the Username field is left blank, the system will create a unique username for the profile. This username will be the account code + a unique number identifying the profile in the account.
Note: Help topics may include features about to be released.