When your bank account sign-in information is inaccurate or not recognized by the bank's website,
QuickBooks Error 103 appears. You are unable to link your bank account to QuickBooks because of this issue. To resolve the issue, confirm your login credentials and make the necessary updates in QuickBooks to restore the connection. If you would like to speak with a QuickBooks support specialist immediately, please contact us at +1.833.802.0002.