When the event is about to start, you will receive an invitation email sent by the event's Organizer which will look similar to this one:
The button will lead to the account that was automatically created by the platform when you registered for the event. You will then be prompted to create a new password for your account:
You can also access the event from your phone by downloading the Swapcard app (iOS/Android)
Notes: If you don't see this email in your mailbox, please check your SPAM folder.