Thank you for joining the QuickBooks Community. I'm here to help share some information about the error you're getting when connecting to Safe Credit Union.
You're correct. Error 103 typically indicates an issue with login credentials. Our engineers are continuing to work on solving for this unexpected behavior.
Since you've already called your bank, please check the login credentials you're using in QuickBooks Online. To validate, against the credentials you're using when you directly log in to the bank's website.
On the left pane, select Banking.
At the top left, select the Banking tab.
Locate the account that generated Error 103.
Click the Pencil icon.
Click Edit sign-in info.
Enter your credentials. Make sure to enter your username and password directly instead of allowing the browser to auto-fill your login credentials.
However, if you get the same result, you can download the transactions through WebConnect in the meantime.
Log in to your bank website.
Select the date range of transactions you want.
Select an approved file type.
Download the file to your computer.
Log in to your QuickBooks Online account.
On the Banking page, click the Upload button.
Browse your computer for the bank file and select.
I appreciate your prompt response regarding the exact error that you received. Allow me to provide additional information about this.
If you're referring to Bank error 108, this means that there's a message on your bank or financial institution's (FI) website that requires action from you.
These are the following messages:
New terms of service
An announcement about maintenance or other site changes
A new offer
To resolve this issue, you need to sign in to your bank or FI's website and either dismiss or act on all notifications. If you don't see your notifications, you may need to disable your pop-up blocker.
Once all messages are acknowledged, return to QuickBooks and run a manual update to refresh your bank connection.
From the left menu, select Banking.
On the Banking page, select Update.
If prompted, enter your Multi-Factor Authentication (MFA) credentials and select Continue update.
If the issue persists after trying these steps, I'd recommend following what my colleague @MaryGraceS suggested above. We'll need you to get in touch with our Online Care Team for them to better isolate this issue.
Please know that the Community has your back should you have any questions. Have a lovely day!