Letter Templates - Invalid Field String

Hi there, @JPSolty. I'm here now, and let's work this out so you can proceed to update your company's business letter templates in your QuickBooks Desktop (QBDT).

Before anything else, may I ask what version of Word you're using to create the template? Please be aware that QuickBooks Desktop 2018 to 2020 requires Microsoft Word 2010, 2013, 2016, or even Office 365 (includes 64-bit) when preparing letters. Also, you'll want to ensure that your QuickBooks Desktop is updated and compatible with your Word application.

You can also perform the Verify and Rebuild Data in your QBDT company. The Verify Data identifies potential data issues within a company, and then the Rebuild Data resolves most data integrity issues that the Verify Data detects.

See this article for further guidelines: Verify and Rebuild Data in QuickBooks Desktop.

If the issue persists after running Verify and Rebuild Data, you can proceed to run QuickBooks Tool Hub. To begin, here's how:

1. Close QuickBooks.
2. Download the most recent version (1.5.0.0) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it (like your Downloads folder or your Windows desktop). A reminder, If you've installed Tool Hub before, you can find out which version you have. Select the Home tab. The version will be on the bottom.
3. Open the file you downloaded (QuickBooksToolHub.exe).
4. Follow the on-screen steps to install and agree to the terms and conditions.
5. When the install finishes, double-click the icon on your Windows desktop to open the tool hub.

Visit this page for other available solutions: Repair your QuickBooks Desktop for Windows.

In addition, here's an article to help you in case you encounter issues sending your custom email templates in QBDT: Fix custom email template issues in QuickBooks Desktop.

Lastly, feel free to check this page to learn more about importing and exporting data in QBDT: Import and export data in QuickBooks Desktop.

@JPSolty, If you need further assistance updating templates in your QuickBooks, feel free to get back to me by clicking the REPLY button below. I'll gladly help you out again. Take care, and have a good one!

Hi @Kurt_M, I followed the steps you provided below unfortunately the letter template still gives me a warning about the invalid field string. I am currently using word 2016, along with QuickBooks Premier - Accountant Edition 2021.

Welcome back, @JPSolty.

I appreciate you performing the troubleshooting steps shared by my colleague KurtKyle_M above. I want to make sure this issue is taken care of, and I'd like to redirect you to the best support group available to get this addressed right away.

Performing the troubleshooting steps above should be able to fix your issue about the "invalid field string" error. Since it didn't work, I recommend reaching out to our QuickBooks Support Team. This way, they can further check on this matter and provide in-depth troubleshooting steps to get this resolved. They can also create an investigation ticket if other users are experiencing the same. To reach them, you can follow the steps below:

1. Go to the Help icon and select QuickBooks Desktop Help.
2. Click Contact Us.
3. Write your concerns in the description box, then select Continue.
4. Select which one of the support options you'd like to use.

You can also check out this article for another way of reaching out to our support team and its support hours: QuickBooks Desktop Support.

Let me know how the call goes by leaving a comment below, @JPSolty. I want to ensure this issue gets fixed.

You may want to run and customize a report to view all your sales transactions in QuickBooks. This article will guide you on which report you can run: Customize reports in QuickBooks Desktop.

Wishing you all the best!

Thank you, I will go ahead with this. 

Hello there, JPSolty.

Anyway, if you have any other questions and concerns with QuickBooks. Feel free to drop me a line so we can assist you easily. Have a nice day.