Troubleshoot QuickBooks System Exception Errors

Are you facing errors while working with your QuickBooks bank feed? They’re called QuickBooks system exception errors, which look somewhat like this:

quickbooks system exception error

“System.Argument.Exception: Parameter is not valid”


“System.Argument.ExceptionSmiley Tonguearameter is not valid at ……”


System.ArgumentOutOfRange.Exception: Index was out of range”

What causes system exception errors in QuickBooks Desktop?

system exception error in quickbooks

Usually, these errors take place when you’re working with the bank feed in QuickBooks Enterprise if your vendor name contains special characters or has been damaged. It may even take place if you’ve renamed your vendor.

Given that the root cause of the errors is mostly a minor human error, solving it also doesn’t require any technician. Even if it involves the corruption of data, you can solve this by yourself.

How to fix QuickBooks System Exception Error?

Let’s take a look at how you can solve all these problems. You may not have to perform all the steps given below, but that’s the order in which you should ideally give it a shot.

Step 1: Check for Special Characters

Before we get into any other solution, you need to ensure that your vendor names do not have any special characters. At times, rectifying these will be enough to rectify your error. The most common special character found in vendor names is “&”. If you have those, make sure you convert them into “and”.

Here’s what you need to do:

Step 2: Change Your Mode to Classic

If renaming your vendors doesn’t work, then this is the next thing you try:

Step 3: Check Your QBWin.log Files

If step 2 doesn’t work enough either, you proceed here. Your QBWin.log files will contain error messages. When you open them, you check the most recent entries and resolve any errors you find there. This may involve resolving data damage in QuickBooks:

Step 4: Repair your Microsoft.NET Framework, MSXML, and C++

If the 1st 3 steps aren’t enough, you need to go doing the following:

Step 5: Check for Errors in Your Bank Account

Is the system exception error still there? Probably it’s time you check your bank account for any errors. Here’s how you go about it:

Step 6: Reinstall QuickBooks

By now, your error has actually been solved. However, your software will need a fresh start. So, if you’ve come as far as step 5, it will be better if you finish this step too. Just uninstall the software from the machine and then go for a Clean Install for QuickBooks Desktop.

Contact QuickBooks 24/7 Support Experts to fix System Exception Errors

If you finish the entire process, you won’t have to face system exception errors for a long time, unless you put special characters in your new vendor names again. Fixing this mostly involves some rectifications from your end, usage of the QuickBooks Install Diagnostic Tool, and a clean reinstallation. In case you need a helping hand, dial QuickBooks 24/7 support phone number +1888-727-4587.


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