My child also applied to those campuses and has not received portal info. I understand that is normal.
Gumbymom has helpful info about UC portals in responses on the UC Admissions thread, including this about UCLA:
“Regarding Applicant status portals, UCLA just requires the following to access: UCLA website My Application Status page . You will need to fill in your last name, your date of birth, the city of birth you wrote on your application and your application ID”