How to Fix QuickBooks Qbmapi64 Out of Memory Error in Desktop?

The occurance of QBmapi64 Out of Memory Error in QuickBooks on Windows 10/11 is observed when a user shares an email consisting of E-forms, invoices, or other business documents. Deep dive into this article to gain knowledge related to the QBmapi64 Out of Memory Error, its causes, ways to fix this error, and much more!

The Qbmapi64 Out of Memory Error in QuickBooks typically occurs when the software runs out of system memory, often while sending emails or interacting with large company files. This error can be triggered by various factors, including conflicts with Microsoft Office installations, corrupt QuickBooks files, or inadequate system resources. Users may experience slow performance or difficulties sending invoices, causing disruptions in business operations.

To resolve this issue effectively, it’s crucial to identify early signs of memory-related problems and ensure that your system meets the required specifications. Make sure both QuickBooks and Microsoft Office are up to date, and consider running QuickBooks as an administrator. Here are the 16 effective solutions to fix Qbmapi64 ‘Out of Memory’ Error in QuickBooks Desktop.

Solution 1: Use QuickBooks File Doctor Tool

The QuickBooks File Doctor Tool helps repair company file errors, which may be causing memory errors. It scans and fixes problems efficiently. To fix QuickBooks file errors that may trigger the out-of-memory error:

1. Open QuickBooks Tool Hub.
2. Go to Company File Issues.
3. Click QuickBooks File Doctor.
4. Run a scan on your company file and verify if the error persists.

Solution 2: Rename the QBWUSER.ini File

Renaming the QBWUSER.ini file resolves errors related to corrupted user settings, potentially fixing memory-related errors. A damaged QBWUSER.ini file may lead to this memory error. Here’s how to fix it:

1. Go to:
   Users\[Your Username]\AppData\Local\Intuit\QuickBooks [year].
2. Enable hidden items if the folder isn’t visible.
3. Right-click on QBWUSER.ini, rename it by adding .old at the end.
4. Rename EntitlementDataStore.ecml as well.
5. Restart QuickBooks Desktop.

Solution 3: Run QuickBooks as an Administrator

Running QuickBooks as an administrator ensures proper permissions, preventing errors related to system access and memory. To resolve permission-related QuickBooks errors:

1. Close QuickBooks.
2. Right-click the QuickBooks icon.
3. Select Run as Administrator.

Solution 4: Set Qbmapi64 to Run as an Administrator

Setting Qbmapi64 to run as an administrator resolves errors caused by lack of privileges, improving memory management. When this error appears, don’t close the message. Try this instead:

1. Try sending an invoice to trigger the error.
2. Open Task Manager with Ctrl + Shift + Esc.
3. Locate Qbmapi64 under the Details tab.
4. Right-click it, go to Properties > Compatibility tab.
5. Check Run as administrator, then click Apply > OK.
6. Restart QuickBooks and resend the invoice.

Solution 5: Use Webmail Instead of Outlook in QuickBooks

Follow the steps given below if you can’t send emails using Outlook:

1. Go to Edit > Preferences > Send Forms.
2. Select Web Mail.
3. Click Add, input your email provider info, and click OK.

Solution 6: Update QuickBooks Desktop

Updating QuickBooks ensures that you’re using the latest software version, which may fix memory-related errors and bugs. Keeping QuickBooks updated can prevent or fix many errors:

1. Open QuickBooks.
2. Click Help > Update QuickBooks Desktop.

3. Select Update Now and click Get Updates.

Solution 7: Update and Set Microsoft Outlook as Default Email Client

Updating and setting Outlook as your default email client ensures compatibility with QuickBooks, preventing email-related memory errors.

To Update Outlook:

• Open Outlook > File > Office Account > Update Options > Update Now.

To Set Outlook as Default:

• Go to Control Panel > Programs > Default Programs.
• Click Set Default Programs > Mail > Outlook.

Add an Email Account:

• In Outlook, go to File > Info > Add Account.
• Enter your email address and follow the prompts to finish the setup.

In case Outlook doesn’t appear in QuickBooks:

• Restart your computer.
• Repair QuickBooks.
• Try creating a new Windows user profile.

Solution 8: Use a Different QuickBooks User Profile

Creating a new user profile can bypass errors with corrupt user settings, solving memory-related errors in QuickBooks. Sometimes, the user profile may be corrupted. Try creating a new one:

1. Go to Company > Set Up Users and Passwords > Set Up Users
   (Enterprise: Company > Users > Set Up Users and Roles).
2. Click Add User, create new credentials, and customize settings.
3. Log out and sign in with the new user.
4. In case it is successful, delete the old user and recreate it.

Solution 9: Uninstall and Reinstall Microsoft Office 365

Reinstalling Microsoft Office resolves conflicts that may cause memory errors when interacting with QuickBooks, improving functionality. Microsoft Office issues may cause the qbmapi64 memory error.

Uninstall Office 365:

Click-to-Run or MSI Installations:

1. Open Control Panel > Programs and Features.
2. Right-click Microsoft 365, choose Uninstall.

Microsoft Store Installations:

1. Go to Start > Settings > Apps.
2. Select Microsoft 365, then click Uninstall.

Reinstall Office 365:

1. Download from the Microsoft website.
2. Run the setup and allow the app to make changes.
3. Install it until the message “You’re all set!” appears.

Solution 10: Use the Install Diagnostic Tool via QuickBooks Tool Hub

Running the Install Diagnostic Tool helps resolve installation issues that could cause memory-related errors in QuickBooks. Fix installation errors that may be behind the error:

1. Open QuickBooks Tool Hub.
2. Go to Installation Issues.
3. Select QuickBooks Install Diagnostic Tool.
4. Let it scan your system for about 20 minutes.

Solution 11: Try Using a Sample Company File

Testing with a sample company file helps determine whether the error is with the file, facilitating a quicker fix. To see if the problem is with a specific file:

1. Go to File > Close Company.
2. In the No Company Open window, select Open a Sample File.
3. Choose a file with an invoice template.
4. Try sending the invoice.

If the sample file works, your main file may be damaged. Run:

• File > Utilities > Rebuild Data
• Then, File > Utilities > Verify Data

If needed, use Install Diagnostic Tool and Quick Fix My Program from Solution 10.

Solution 12: Add More RAM to Your Computer

The error might result from insufficient memory. Adding more RAM can help QuickBooks handle large files and reduce memory-related errors.

Solution 13: Repair QuickBooks with Quick Fix My Program

Adding more RAM can prevent memory-related errors in QuickBooks by ensuring your system can handle larger files. This can resolve internal QuickBooks performance issues:

1. Open QuickBooks Tool Hub.
2. Go to Program Problems > Quick Fix My Program.
3. Let the tool repair the application.

Solution 14: Check Your Email and Antivirus Settings

Correct email and antivirus settings prevent interference with QuickBooks operations, resolving errors that can trigger memory errors. Incorrect email settings or antivirus programs may block email functionality:

1. Allow access for less secure apps.
2. Adjust email settings to work with QuickBooks.
3. Temporarily disable antivirus software and try again.

Solution 15: Update or Reinstall Microsoft Office

Updating or reinstalling Microsoft Office ensures compatibility with QuickBooks, preventing email-related and memory-related errors. Follow these steps:

1. Open Word and go to File > Account/Help > Update.
2. Update Office and ensure QuickBooks is also up-to-date.
3. If problems continue, try reinstalling Office.

Solution 16: Uninstall the Current QuickBooks and Install R3 Version

Uninstalling QuickBooks and installing the R3 version helps fix specific errors that occur on certain server configurations. Especially useful for Windows Server 2016 users:

1. Open Control Panel > Programs and Features.
2. Find your QuickBooks version, right-click, and uninstall it.
3. Download and install the R3 version of QuickBooks Desktop.

What are the Prerequisites to Fix Qbmapi64 ‘Out of Memory’ Error in QuickBooks Desktop?

Before fixing the qbmapi64 ‘Out of Memory’ Error, ensure the following requirements:

• Ensure your system meets QuickBooks’ minimum requirements to avoid memory-related errors.
• Update both QuickBooks Desktop and Microsoft Office to the latest versions.
• Make sure your operating system, such as Windows, is up-to-date for better compatibility.
• Back up your QuickBooks company files to prevent data loss during troubleshooting.
• Check for sufficient available memory (RAM) on your computer to handle QuickBooks’ demands.
• Run QuickBooks as an administrator to prevent access-related errors.
• Confirm that your email settings and antivirus software are not blocking QuickBooks’ email features.

How to Identify Qbmapi64 ‘Out of Memory’ Error in QuickBooks Desktop?

Qbmapi64 ‘Out of Memory’ Error can be identified by the following signs:

• You may notice frequent slowdowns or performance errors within QuickBooks.
• Difficulty sending invoices, particularly when emailing from QuickBooks, could indicate a memory errors.
• QuickBooks might freeze or crash, especially while interacting with large company files or when using Microsoft Office.
• A prompt for the “Qbmapi64 out of memory” error may appear during specific tasks like sending emails or processing reports.
• QuickBooks becomes unresponsive.

How to Prevent Qbmapi64 ‘Out of Memory’ Error in QuickBooks?

The tips given below will assist you in avoiding Qbmapi64 ‘Out of Memory’ Error in the future. 

• Regularly update QuickBooks Desktop and Microsoft Office to their latest releases.
• Avoid overloading your system by managing memory-intensive tasks and closing unnecessary applications.
• Allocate more RAM to your computer if your system consistently runs low on memory.
• Ensure email configurations and antivirus settings are properly set to allow QuickBooks to function without interference.
• Run QuickBooks with administrator privileges to avoid permission-related errors.

When Should You Seek Professional Help for QBMAPI64 ‘Out of Memory’ Error in QuickBooks Desktop?

In case Qbmapi64 ‘Out of Memory’ Error in QuickBooks Desktop keeps reoccurring or you’re unsure how to fix it, reaching out to a professional is a smart move. This error can impact data syncing and overall performance. Instead of troubleshooting endlessly, let experienced technicians handle it. Getting help early saves valuable time, avoids potential data mishaps, and ensures your financial records stay on track and accurate.

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