From Quickbooks Online - banking, can you add a description dropdown list that changes based off the account or the vendor selected?
Thanks for checking this banking concern here in our forum, @luke-bord,
Regarding the Description column, the information shown there shows what we receive from the bank. Adding a custom drop-down to include other details based on the chosen account or vendor is currently unavailable.
There are options you can try to display the description as shown in the bank statement. Use the Show bank details filter or the Copy bank detail to memo. You can also manually fill in the information in the Memo field when categorizing the banking entry.
To learn more about what you can do in the Banking page, see the following links: