Hi all,
If some of you recently started getting OL-301-A making Truist bill payments that previously used to work, Truist has gotten more strict about what goes in the comment field. Support might tell you to make sure it doesn't have special characters on it, but in my case, it was a comment without special characters that was over 34 characters which Quicken allows. Just shortening the comment field allowed the payment to go through successfully.
John A