Why my email is not recognized by the system?

Check your email in your SIS profile, it should be the one you registered during the online application as new student.
If the email address saved in your SIS profile no longer exists, request for change of email thru sisconcerns@pup.edu.ph with your attached PUP ID or any valid government ID.
Let us include what they could do in case they forgot their email accounts in this box.