There are 2 paths to consider:
#1 retains all reference back to the acquired bank names so you always know who the bank was for each transaction. #2 retains all transaction history but it will look like all transactions were done with US Bank (not Union Bank) but you will have a more simplified historical view because you will have fewer accounts in Quicken to manage and work with.
There is no right or wrong option. It is a personal choice. If you would clarify which path you want to take, I can provide more details of which steps to take.
I followed the first path, but I now realize that could cause issues with reconcillation against the monthly bank statement. Especially if the statement date ranges change between those used by Union Bank and US Bank.
When I set up the US Bank accounts in Quicken, they downloaded transaction back to March 1, 2023. So it will be interesting to see what happens with the statements.
What a PAIN
Opting for #2 but can't even login to setup. I am thinking of just canceling this account.
"Sorry, our system is currently unavailable. Please try again."
I just talked to US Bank technical support and they have to set up "Quicken Direct Connect with bill pay" for you, assuming you want to use their bill pay service. Call 800-987-7237 and select option 2. This information is contained in a later from them dated April 28, 2023.