Good day, @Simmo70.
I appreciate your efforts in trying to resolve the issue. I'm here to help ensure you're able to re-connect your bank account in QuickBooks Online (QBO).
Error 103 occurs when credentials entered into QuickBooks Online don’t match with what your financial institution has.
Here are the following reasons why you receive an Error 103:
- You have entered the wrong credentials while trying to connect to your financial institution for the first time.
- You have selected the wrong financial institution (there are often many to select from).
- If you are currently connected and you’ve updated your credentials with your financial institution, you need to update the information in QuickBooks Online.
If you have followed the step to fix the 103 error and yet it didn't work. I suggest reaching out to our customer support team. They have the tools to open your account insecurely ways and investigate this further.
Here's how:
- Go to the Help menu.
- Press the Contact Us button.
- Type in your concern in the What can we help you with? field.
- Click the Let's talk button.
- Select either Get a callback or Start a chat in the Choose a way to connect with us section.
If you can connect your account and get your latest online transactions, here is the reference you can use to review and put them into the correct accounts in QBO: Categorise and Match Online Bank Transactions in QuickBooks Online.
In case you need to assess your business financials in the future, consider visiting this reference page: How to Reconcile an Account in QuickBooks Online. This contains more details on how to fix bank errors that can be useful for your future tasks.
I'm all ears if you have additional questions about bank connections in QuickBooks. Just tag my name in the comment section and I'll assist you further. Take care.
