Let's resolve the error you're having to prepare your 1099-NEC, @elles.
First, make sure to update your QuickBooks Desktop (QBDT) to the latest release. This will make sure that you have the latest features and fixes.
You can set it automatically or manually. To check the latest available release for your version and on how to set up automatic and manual updates, refer to this article: Update QuickBooks Desktop to the latest release.
Try to check if you can now change the mapping. If it's still not working, I suggest running the Rebuild and Verify Utility tool to fix possible data damage on your company file.
Please follow the steps below:
- Open your company file again.
- Go to the File menu, then select Utilities and choose Rebuild Data.
- Click OK in the QuickBooks Information window.
- Wait until the repair is done. Then, click OK.
- Then, go back to the File menu and select Utilities and choose Verify Data.
- Click OK if QuickBooks doesn't find any problems. Or Rebuild Now if it finds issues with your company file.
If you still get the same issue, let's try running the QuickBooks File Doctor to fix common issues.
- Open your QuickBooks Tool Hub.
- Select Company File Issues.
- Click Quick Fix my File.
- Choose OK when it completes and launch your QuickBooks.
I'm adding this article for more troubleshooting steps: Fix data damage on your QuickBooks Desktop company file.
Here's more information about what you need to do if you need to file both a 1099-MISC and 1099-NEC: Modify your chart of accounts for your 1099-MISC and 1099-NEC filing.
To help you with preparing your 1099s and filing, refer to this article: Create and file 1099s with QuickBooks Desktop.
Refer to the following article on how to check the status of your submitted 1099s: 1099/Tax/Submission Status.
You're always welcome to post a reply here to keep us updated or if you have any other concerns with your 1099. We're here to help. Take care and stay safe!
