You should update your contact details (telephone and email) to make sure Sanitat can contact you when it is your turn for a vaccine.You need SIP Card Number, Date of Birth, and Date of Issue and typing in the Security Code. Validate the data then input your phone numbers (Spanish phone numbers only) and email address. Then press ENVIAR. You will get a message back to say it has been done correctly. NB Sanitat recommends you use updated browsers of Microsoft Edge, Safari, or Firefox to avoid problems.
If you can not do it online you can do it at the reception of your health centre.