Calendar Authentication In order to edit events, you will need to provide the email address that you used when you posted the event as well as the password. Remeber that if you did not provide a password when you posted the event, then you will not be able to edit that event. The email address and password must match together, so if you used the same email address, but provided different passwords for event posts, then you will need to log in separately for each password. Email Address: Password: