In order to access online banking in QuickBooks, you need to create a connection by verifying your identity. Once the verification is done, then you can access all your data in QuickBooks including your banking transactions and other financial data. Sometimes, there arises an error when either QuickBooks or your bank cannot verify the connection. One such error is QuickBooks Error 103. If you are unable to resolve the error then you can call at (844)-888-4666 for help.