Hey @JG888, @NUMBERS3,

If you are getting the QBDT Error 591 when trying to sync your American Express account, you are not alone. Many users have reported this issue on the Community Forum. The error means that there is a problem with the connection between QuickBooks and American Express. There are some possible solutions that you can try, such as updating your bank sign-in information, disconnecting and reconnecting your account, or contacting American Express support at [phone number removed]. You can find more details and steps on how to do these in this article:

https://quickbooks.intuit.com/learn-support/en-us/banking/error-591-when-connecting-to-american-expr...