QuickBooks error 103 occurs when you enter the login credential, which is not acknowledged by your financial institutions website. To fix this error, go through the steps mentioned below:
-Go to the banking option and select Add account.
-Enter the full name of your bank in the search box
-You need to choose the account you want to connect to
-Use correct login ID and password
-Repeat this process until you get the correct website under the bank name.
These are some basic steps you could use to get rid of the error 103. You can also contact QuickBooks tech support Phone Number to get help from the technical experts who help you by providing the best possible solution in no time.