QuickBooks Error Code 103 & 310 are usually displayed when QuickBooks login details that have been entered are not accepted by the financial institution’s site or if the bank stops QuickBooks online login requests.
There are two possible causes for QuickBooks Error Codes 103 and 310:
You have entered the wrong login credentials.
Bank website does not accept QuickBooks login details
To fix QuickBooks Error Code 103 & 310:
Solution 1 : To fix QuickBooks Error Code 103 & 310:
- In the error message, click the link that says “Verify your credentials”.
- Enter your credentials manually to log in to the bank’s website.
- Log out of this website
- Return to QuickBooks Online page.
- Register with the same details as above.
- Click on the Update Sign In Info option.
Solution 2: Update Bank details.
- QuickBooks Online: Go to the Banking Section.
- Click the pencil icon.
- Log in to edit your information.
- Click the link to log in to the bank’s website.
- Here are your login details.
Hopefully you were able to fix QuickBooks Error Code 103 & 310. If you need professional help with QuickBooks Error Code 103 & 310 please contact QuickBooks Enterprise Support at +1 888-485-0289.
Source: https://www.setuppost.com/how-do-i-resolve-quickbooks-error-code-103-310-in-quickbooks/