sagenext logo
How do I fix common errors in QuickBooks?QuickBooks · Nov 7th 2025 · 7 Min read

How do I fix common errors in QuickBooks?

While working in QuickBooks, you may occasionally encounter glitches or errors that can disrupt your workflow. Some of the most common QuickBooks issues include:

  • Error 6123
  • Error H202
  • Company file issues
  • Installation errors
  • Network connectivity problems
  • PDF or printing errors
  • QuickBooks crashing or freezing

These errors can occur due to various reasons, such as damaged files, incorrect settings, or connectivity issues. Ignoring these problems can lead to serious disruptions in your accounting operations.

To help you maintain smooth performance, here are some of the most effective solutions to fix common QuickBooks errors and get your software running flawlessly again.


Methods to Solve QuickBooks Common Problems:

Solution. 1: Update your QuickBooks application 

Generally, using outdated application versions can create multiple glitches in your software. You can update the outdated version to the latest release of QuickBooks. 

Solution. 2: Perform a Microsoft Outlook update

  1. Go to Microsoft Outlook, move to the File.
  2. Click on the Office Account, then on the Update Option.
  3. Hit on the Update Now.

Solution. 3: Set Microsoft Outlook as your default mail app

  1. Move to the Control Panel, then Programs.
  2. Navigate to Default Programs and set your default programs
  3. Go to Mail and select Outlook.

Solution. 4: Add your email account to the Microsoft Outlook

  1. Go to Microsoft Outlook, and move to File.
  2. Tap on Info, select Add Account to initiate setup.
  3. Type your email address to add, then Next.
  4. Wait for a few minutes to Microsoft Outlook to choose the server, then Connect.
  5. Type your password and then OK.
  6. Click on OK to end the setup.

If QuickBooks cannot identify Microsoft Outlook, execute the following steps:

  1. Open QuickBooks, move to Edit, and then Preferences.
  2. Click on Send Forms.
  3. Select My Preferences.
  4. Note: If still, Microsoft Outlook isn’t visible, restart your computer and run a repair on the QuickBooks. Alternatively, generate a fresh Windows user profile.

Solution. 5: Toggle your mail settings

  1. Move to the Control panel, then choose User Account.
  2. Click on Mail, then Microsoft Outlook.
  3. In the Profile tab, tap on the Show Profile.
  4. Click Outlook.
  5. Select the Always use this profile, tap on apply on the prompt that appears.
  6. Click on the Always use this profile.
  7. Select Apply, then OK.

Solution. 6: Generate a fresh Microsoft Outlook email profile

  1. Go to the Control Panel, and click on the User Account.
  2. Choose Mail and select show profile and click on Add.
  3. Under the Profile Name column, type your name.
  4. Click on OK and follow the on-screen prompts to add an email address.
  5. Click Apply and choose OK.

Note: It will not delete your existing Outlook Profile.

Solution. 7: Open QuickBooks in compatibility mode

  1. Double-click QuickBooks and click on Properties.
  2. In the Compatibility screen, choose Run this application in compatibility mode.
  3. Within the dropdown, choose appropriate Windows.
  4. Select Run this application as an admin checkbox.
  5. Click on Apply, then OK.

Solution. 8: Generate a Windows admin user

  1. Initially, make a Windows user with Admin rights.
  2. Access the Windows with a new User.
  3. Re-open your application.

Conclusion

QuickBooks is a powerful accounting tool, but like any software, it can occasionally face errors such as 6123, H202, company file issues, or network errors. These problems often arise due to outdated versions, misconfigured settings, or compatibility conflicts with Microsoft Outlook or Windows.

By following the solutions outlined above such as updating QuickBooks, configuring Outlook properly, running the software in compatibility mode, or creating a new Windows admin profile you can efficiently resolve most of these common issues and restore smooth functionality.

To minimize future disruptions, always keep your QuickBooks and system software updated, ensure stable network connectivity, and consider hosting QuickBooks on a reliable cloud platform like Sagenext for enhanced performance, data security, and 24/7 accessibility.


FAQs

What are common workflow errors that can cause duplicate expenses in QuickBooks Online?

Duplicate expenses in QuickBooks Online often occur when transactions are manually entered and also imported from bank feeds, or when bills and expenses are recorded separately for the same purchase. Other common causes include incorrect vendor matching, recurring transactions set up twice, or duplicate uploads from connected apps or integrations.

written by

About Author