I'll provide details about the error and how to fix it, mhaccounts.
You'll encounter an error 103 if the user ID or password of the bank account you're trying to connect is incorrect. To resolve this, open a new tab and log in to your bank's website to confirm your sign-in information.
If you're unable to sign in, make sure to follow the bank’s instructions on how to get the user ID, reset your password, or both. Otherwise, check out this article for the other steps: Fix banking error 103 in QuickBooks Online.
Please let me know if this helps you fix the error. I'll be around to help you until a solution is found.
