Hi there, Mal2020.

Thank you for visiting again the QuickBooks Community. I'll be providing details on how upgrading works in QuickBooks Desktop. Then, to ensure that you'll be able to achieve your goal. Beforehand, may I ask the specific error message you're referring to? I appreciate any further details so I can provide accurate solutions.

When upgrading QuickBooks Desktop, you'll need to know the system requirements. This is to ensure that everything's compatible before the activation to avoid any issues when utilizing the system. 

On the other hand, Importing and exporting.IIF files in QuickBooks Desktop are easy and the system formats the file for you. However, adapting data from another program is technically complicated because you can only import a certain number of list items and transactions. That said, importing hours or timesheets isn't possible in QBDT. You can click on this article to see further details on how IIF works in our software: Export, import, and edit IIF files.

Additionally, you have the option to manually create a weekly timesheet to track hours in QuickBooks Desktop. This is to make sure that the timesheet will appear in the system.

Lastly, you may refer to this article to view different details on what features are included in the QuickBooks Desktop 2022 release and how you can use them to benefit your business: What’s new in QuickBooks Desktop 2022.

If there's anything else I can do for you about managing your data, please don't hesitate to leave a comment below. I'm a post away to help. Keep safe!