I'll provide the two options for this, @tspeng22.
If you're trying to change the license of QuickBooks Desktop (QBDT) for Mac 2020 on the new macOS on the same MacBook, there's a need to deauthorize it. Then, reinstall the program afterward. Here's how:
- Go to QuickBooks from the top menu.
- Select Manage My License and click Deauthorize This Computer.
- When you get the prompt, choose Deauthorize and Quit.
- Reinstall the program and follow the registration process. Then, enter a different license.
For the detailed instructions, check out this article: Change License Number Or Product Code. Just go to the QuickBooks Desktop for Mac section.
If you're trying to reinstall QBDT for Mac 2020 using the same license, there's no need to deauthorize it. I'd suggest uninstalling the program so you can re-open it from a clean slate on the said MacBook. You'll have to create a backup of your company file to secure your data before performing the steps below.
- Close QuickBooks.
- Go to the Finder menu.
- Select Applications.
- Drag the QuickBooks icon to the Trash.
Once done, proceed with Steps 2 - 4 through this article: Using Clean Install.
You can also restore your backup company file to move your data from previous (beta software) to the new macOS.
After that, you can now perform essential tasks in QBDT for Mac 2020. To learn more about its basics and get set up for success, visit this link: Get Started.
Also, I recommend utilizing our PDF file to help you efficiently manage the program's features: User Guide.
Just click the Reply button below if you need further assistance. The Community and I will be around to help.
