Whether or not online check-in is available for your booking depends on the route and ferry company you've selected. This information will be included in the "Important Information" section at the bottom of your confirmation email.
Where online check-in is possible, we'll email you to let you know when the check-in opens for your booking. Usually, it's between two days and one week before you travel. Once you complete the check-in, you may be unable to make any changes to your booking, so make sure you're all set to travel before you do your check-in.
You can see if online check-in is available for your trip before making a booking by looking out for the QR code or info icon.