A Quick Guide: QBMapi64 Out of Memory Error in QuickBooks

The QuickBooks is caused by faulty company files, corrupted antivirus settings, or files received from unreliable sources. To resolve this issue, the user must perform a diagnostic repair, update QB, repair the Mapi64.dll, and verify internet settings.
Qbmapi64 When users attempt to send an email in QuickBooks Desktop, they see an Out of Memory Error. Software-starting issues or the inability to send the draft email are signs of this error. You are unable to send any emails using QuickBooks because of this problem.
The statement You cannot send future emails using QuickBooks Desktop flashes in a dialogue box. Running into this QBmapi64 error can be annoying. Therefore, fixing the QuickBooks QBmapi64 Error is essential.
There is no need to worry about the financial data because it is entirely safe and unconnected to the issue. You will still need to take the necessary actions to fix the error and start sending emails from QuickBooks Desktop without any problems.
For troubleshooting assistance with QB issues, contact +1(855)-738–0359 team of QB experts. Their knowledge will ensure effective system eradication.
Reasons for the Out of Memory Error in QuickBooks Desktop
The user may quickly fix the Qbmapi64 Error in its early stages if they know why it occurs. The following are typical reasons why emails encounter the Qbmapi64 Out-of-Memory Error:
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Issues with QuickBooks installation may cause this issue
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Microsoft 365 files and components may need to be repaired or reinstalled due to damage
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Problems with the program may cause this error
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A corrupted or absent QBWUSER.ini file could cause the out-of-memory error
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Microsoft Office was out of date
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QuickBooks and outdated Windows
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A sluggish CPU or memory leak may potentially cause the issue
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Email settings may cause this problem
Instructions to Fix QBMapi64 Out of Memory Error in QuickBooks
QBMapi64 Out of Memory Error in QuickBooks Until it is fixed, QuickBooks' qbmapi64 problem continues negatively impacting your experience. Refreshing the software doesn't make it go away.
Therefore, as soon as users see the QuickBooks Desktop Out of Memory Error, they must fix it. Some of the finest fixes for this error have been stated; if you follow these steps, you should have no trouble fixing the QBmapi64 error.
See how to resolve the QuickBooks Desktop QBmapi64 Out of Memory Error and get back to emailing quickly and easily.
Instruction 1: Download the Most Recent Version of QuickBooks
Intuit always recommends downloading the latest version of QuickBooks whenever the development team releases new updates.
This also applies to Windows 10, 11, and Microsoft Office, as these systems must be compatible with QB. The updated version of the software is free of bugs and has improved security protocols and new features.
Here is a step-by-step guide:
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Choose the File option from the QuickBooks Desktop menu
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After selecting Utilities, choose Stop Hosting Multi-Users Access
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Go to QuickBooks' Help menu, then choose Update QuickBooks Desktop from the drop-down menu
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From the Update Now tab, select the Mark All Check Box
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Click Reset Update to remove all the updates you downloaded after selecting Get Updates
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After the software has finished downloading, restart your computer
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Click Install Now in the prompted window, then follow the on-screen instructions to install the QB Desktop updates
Instruction 2: Make Outlook or MS WebMail the default application
Make Microsoft WebMail or Outlook the default in QuickBooks Preferences and System Settings. Without Microsoft WebMail or Outlook, QuickBooks cannot send or receive emails.
Email sending will be difficult if you don't have Outlook or MS WebMail as your default email software. To find out how to modify system settings so that emails can be sent, follow the instructions below.
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Choose the Applications option from the menu on the left after opening the Control Panel window
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In the window that appears, choose Mail
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You have to select either Webmail or Microsoft Outlook as your computer's default mail application
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Once the changes have been saved, exit the Control Panel window
Instruction 3: Fixing the Damaged Mapi64.dll file
Building a connection between the Messaging Application Programming Interface (MAPI) and other system software and emailing (via Webmail and Microsoft Outlook) takes up most of Mapi64.dll's work.
On Windows 11, a QBmapi64 out-of-memory problem happens instantly when the Mapi64.dll file gets corrupted and stops working when you try to send emails.
The following steps must be followed in order to fix the Mapi64.dll file:
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To open the File Explorer, press Windows+E. From the menu at the top, choose View
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Ensure the Hidden Objects checkbox is checked, then navigate to the search bar in File Explorer
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Enter fixmapi and locate it using the search results
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To start the application, find Fixmapi.exe in the list and double-click it
Explore more about:- How to set up email in QuickBooks?
Conclusion
By following the steps listed in this post, you can fix the sudden termination of the QBCFMonitorservice service. If you are having technical issues and cannot finish the solution, call the QuickBooks expert hotline +1(855)-738–0359.
Describe the problem with the QBCFMonitorService not working on this PC so that the proper fix can be received.
FAQ: About QBMapi64 Out of Memory Error in QuickBooks
What does the QBMapi64 Out of Memory Error mean in QuickBooks?
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The QBMapi64 Out of Memory Error in QuickBooks typically occurs when users try to send emails through QuickBooks, often via Microsoft Outlook. This error message indicates that the system has run out of available memory or that a critical QuickBooks integration component, such as QBMapi64.dll, is malfunctioning. The issue can disrupt workflows by preventing users from emailing invoices, reports, or other documents directly from QuickBooks.
Why am I suddenly seeing the QBMapi64 Out of Memory Error after a QuickBooks update?
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Many users encounter this error after a recent QuickBooks or Windows update. These updates can cause compatibility issues between QuickBooks and Microsoft Outlook or can corrupt essential components like the QBMapi64.dll file. Additionally, background processes or antivirus programs may interfere with how QuickBooks communicates with your email application, leading to this memory-related error.
Can the QBMapi64 Out of Memory Error be caused by system memory limitations?
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While the name of the error suggests a memory issue, it is not always tied directly to physical RAM limitations. In most cases, the problem stems from damaged files, incorrect application settings, or outdated QuickBooks components. However, low available system memory can contribute to the issue, especially if multiple applications are open at the same time.
How do I fix the QBMapi64 Out of Memory Error in QuickBooks?
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To resolve this error, you should first try running QuickBooks as an administrator and ensure that Outlook is set as your default email program. If the issue persists, repairing your QuickBooks installation or reinstalling Microsoft Outlook integration components might help. Renaming or replacing the QBMapi64.dll file can also be effective. If none of these methods work, contacting QuickBooks support is the best way forward.
Is the QBMapi64 Out of Memory Error harmful to my company data?
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No, this error does not harm your company data. It mainly prevents email-related functionalities from working properly within QuickBooks. However, if left unresolved, it can disrupt communication with clients or delay sending important financial documents. Timely troubleshooting is recommended to avoid workflow interruptions.
Do I need professional help to fix the QBMapi64 Out of Memory Error?
- While some tech-savvy users may be able to troubleshoot the error on their own, many cases require advanced knowledge of QuickBooks components and system files. If you're uncomfortable navigating through Windows settings or modifying files, it's best to consult a QuickBooks expert. You can contact the QuickBooks support team at +1(855)-738–0359 for expert assistance and step-by-step guidance.
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