Methods to Fix QuickBooks Error 80040408 [Fixed]

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We all know that QuickBooks is considered one of the best accounting software because of the features that it offers. But it doesn’t mean that it is free from any errors or bugs. However, QuickBooks catches some obstacles or errors, such as QuickBooks Error 80040408. It is a very common error that users face while using QuickBooks. This error is often not understood by users, so they cannot resolve it. If you are also facing the same issue, then we are going to help you in finding a solution. We’ll walk you through every aspect of QuickBooks error code 80040408 in this article.

Overview of QuickBooks Error 80040408

QuickBooks Error 80040408 prevails when you are not able to start QuickBooks due to incorrect settings or wrong setup of QBs software in a multi-user setup. It will pop-up with the message “Begin Session Error Code: 80040408 could not start QuickBooks”. When this error arises then you will not be able to continue your work and it will reduce your productivity. But, don’t worry!! We have got the solutions that will fix this error very easily.

Reasons for QuickBooks Error 80040408

Here we are mentioning the reasons that lead to 80040408 (unknown error): could not start QuickBooks:

If someone has opened software in a single-user mode.
When you try to open the QuickBooks Start-up option.
You are using distinct QuickBooks file names.
It happens when someone opens QuickBooks software on another system & it is currently being used by the same QuickBooks user.
Getting several QBs company files open at once.
The single server user shuts down in a multi-user mode configuration, which prevents the QuickBooks program from running.
In case, you are using different QuickBooks paths.

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Troubleshooting Methods To Fix QuickBooks Error 80040408

You may finally begin fixing QuickBooks error code 80040408 now as you are aware of what it is. These below methods can help you fix QuickBooks error 80040408:-

Method 1: Disable Quick Start

Sometimes the Quick start feature is the reason for getting QuickBooks error 80040408. So, you need to turn it off to fix this error. For that look at the steps:

You need to Disable the Quick Start feature in QBs.
Tap on General and choose My Preferences.
Uncheck Keep QuickBooks for the quick startups option.

Note: Sign out all users from QBs as this error is arising due to other users trying to do administrative tasks by signing into QBs account.

Method 2: Open QQube Configuration Tool

This tool controls all the processes related to your product. So, to fix the QuickBooks error code 80040408, you need to perform it in two parts:

1: Steps to Open QQube Configuration Tool

For that, you need to tap on Database and then choose Show More.
Now, tick the mark on the Synchronizer & Database Manager menu if they are unchecked.

Note: After this, you need to verify that your QQube Configuration Tool company file must match the company file name on your PC. In case you are using QBs in a multi-user mode then you can’t make changes in the name of the company file from the QQube configuration tool directly. For that, you must look for the second part.

2: Steps to Open company file using QQube Configuration Tool

Tap on QuickBooks Company List.
Then from the right corner, select Change Path.
Lastly, navigate the company file on your system.

Note: If you are opening a QBs application then open it with No Company File chosen as it might be possible that there is already a file opened and it will show you this error.

Final Say

We hope that using the above approach, you were able to effectively handle QuickBooks Error 80040408. In case the error does not go away, there can be a problem that requires immediate action. So, we’d like to help you whenever you need us. We have a team of experts that will guide you through every difficulty you face.