Thanks for reaching out to us, 1a2b.
That is true. You'll need to fill in and submit a signed authorization for ACH and eCheck transactions. The link to the ACH Authorization Form to accept an eCheck isn't working. Even though we're evolving, we don't anticipate this change the way our product behaves.
We have already informed our software engineers about this issue. We'll update this thread as soon as the form becomes available. In the meantime, I recommend looking for an Auth form for ACH and eCheck agreement outside of QuickBooks Online so you may complete your transaction.
Here are some articles I've gathered with more details about payment processing for future reference:
We're all right here anytime you need help. Take care and stay safe.
