Thanks for the update, @bhi,

If you're using QuickBooks Enterprise, you are entitled to get a free upgrade once a new version is released. Each year version has a specific product number which is distinct from the previous ones. The license number, however, will not change since it is what identifies the software you purchased from us.

There are two ways to update the product number. First, if you have QuickBooks Enterprise installed in five or fewer computers, uninstalling and reinstalling the software with the updated installation numbers is recommended. Check out the step by step process here.

Secondly, if you have more than five workstations, you can update the product number using the following steps:

Step 1: Open the qbregistation.dat file

1. Open QuickBooks then press F2 (or Ctrl+1). Once you see the pop-up window, press F3 (or Ctrl+2) to open the Tech Help window.
2. Find and select QBREGISTRATION.DAT from the Open File tab.
3. Click on Open File to launch a Notepad.
4. The next steps is crucial because Quickbooks won't open right if there are any typos in the file. To create a backup of the qbregistration.dat file, click on Save As from the Notepad File menu. Choose Desktop in the Save As window, then select Save. Once done, close the file.
5. Re-open the file from the Tech Help window.
6. Close QuickBooks, but keep the qbregistation.dat file open in Notepad.

Step 2: Edit the qbregistration.dat file

1. On the Notepad, select Edit then Replace or Ctrl +H in the qbregistration.dat file.
2. Enter the old product number in the Find what field and replace it with the new one in the Replace with field. Use the format XXX-XXX when you enter the product number.
3. Press Replace All.
4. Click File then Save.

Step 3: Checking the new product code

1. Restart your PC and relaunch QuickBooks.
2. On your keyboard, press F2 to display the Product Information window.
3. Check the Product number section and see if it is now updated.

I'm attaching this article with in-depth details about the process: Change a QuickBooks Desktop license number or product code

For safekeeping purposes, make sure to backup your file before doing any of these steps. We also recommend working with an IT guy if you're uncomfortable doing the steps on your own.

Let me know how things go after trying this. I'll be right here if you need further help. Have a great rest of the week!