IF your student finished the the 2019-2020 school year in Albany ISD, you will register as a RETURNING STUDENT. You would only create an account and use a Portal ID, if you never checked grades online.
NEW STUDENT - you did not finish the 2019-2020 school year in Albany ISD. You will create an account.
LINK AN ENROLLED student requires a Portal ID, but this would a student that was in Albany ISD last year, but you had not checked grades online.