Hey there, @GiraffesGiraffes.

Thanks for sharing your concern in QuickBooks Community. I'd be glad to help you record your statements in QuickBooks Desktop (QBDT).

This error message usually appears when the maximum number of customers (4500) were reached while printing statements. 

To check, you can click View Selected Customers to view your total customers. 

If you didn't reach the allowable number of customers yet still getting the same error, we can run some troubleshooting steps to address the issue. 

A minor damage in your company file might be the cause of the error message. Let's start by updating QuickBooks Desktop (QBDT) to its latest release. This way, you'll have the latest product improvements and fixes. 

Here's how:

1. Go to Help and select Update QuickBooks Desktop.
2. Click Update Now, then select Get Updates.
3. When the update finishes, close and reopen QuickBooks.
4. When asked to install the update, select Yes.
5. When the installation finishes, follow the on-screen instructions.

If you're still getting the same result, let's run the Verify and Rebuild Data tools. The verify tool finds the most common issues in a company file and the rebuild tool fixes them.

Moreover, you can check out this article to know more about the different ways of tracking customer transactions: Accounts Receivable workflows in QuickBooks Desktop.

Please let me know how else I can help you with QuickBooks. I'm always here to help. Wishing you and your business all the best.