Hello there, Joe! Welcome to planDisney. We are glad you've stopped by with your question, although we hate to hear you are having some issues with your trip prep.
That's a bummer you seem to be getting an error message trying to assign admission with your daughter's ticket. Unfortunately, when it comes to error messages and problems with tickets loading and linking, there isn't much we are able to do here. We are Guests just like you who don't have that extra magic that Guest Services and Cast Members do. I recommend reaching out to
Ticket Services over the phone or chatting with a Cast Member through the
Disneyland app to see if they can resolve this issue for you. I'm hoping this is an easy fix!
Once you have your daughter's ticket linked and loaded, you'll be able to assign a
MagicBand+ to each of your tickets. I have really enjoyed having a MagicBand+ for my last few visits. It's nice not to have my phone out to scan into the park or my next Lightning Lane. I have a tip that I learned from a Cast Member during one of my trips during the holidays, you can actually leave your MagicBand+ under your shirt sleeve or jacket and it should still scan without issues. This was helpful when it was quite cold out in December and may come in handy with the whacky weather we seem to be having lately.
Joe, I wish I was able to solve your problems, but I'm sure that with a little faith, trust, and pixie dust from a wonderful Cast Member, you'll be one step closer to having your to-do list finalized and ready for your visit! See you real soon!
Carrie