Hello there, @totalexteriors.

I'd be glad to help you change the due date of your e-invoice in QuickBooks Desktop. You can select it manually and enter the correct Due date. I'll show you how:

1. Create an invoice and select the drop-down button under the Email button.
2. Select Email Invoice.
3. Click on the Due date, then enter the date you want to record.
4. Select Send. Here's how it looks like:

If you're still not able to change it, I'd suggest updating the QuickBooks Desktop program. To know more about the steps, you can check out this article: Update QuickBooks Desktop to the latest release.

I've added this article for your future task about tacking the specific aspects of your business: Understand reports. This also contains sub-articles such as customizing and memorizing the report.

Please don't hesitate to let me know if you need further assistance. It will be my pleasure to help. Take care and have a wonderful day.