Welcome to planDisney, Al!
The
California Resident Ticket offer is such a good deal! I wish I lived in California! You may upgrade your two-day ticket to the promotional California Resident Ticket offer only if the amount you paid for your two-day ticket is less than the amount you would pay for the California Resident Ticket. If that's the case, then you can upgrade your ticket by visiting a ticket booth at the Disneyland Resort where the difference between the two ticket types must be paid in full.
With the California Resident Ticket offer, you can visit any three days before September 30, 2021. They do not need to be consecutive days, but you do need to make
theme park reservations for each day that you visit. Be sure to check the
theme park reservation availability calendar before making plans. Also, keep in mind that proof of California residency is required to upgrade your tickets and to redeem them at the gate.
I hope you have a wonderful time at the Disneyland Resort!
-Linda