Thanks for updating us on this, @JDMcM.
We're glad to hear that the error code you encountered between the connection of AMEX and QuickBooks has been resolved.
Also, you can always visit our Help articles page for reference. There, you can read some of our helpful articles that will guide you in your future tasks.
You can always keep in touch if you ever need help with QuickBooks again in the future. Have a great rest of your day!
