Hello, Shaun8500. 

When you move from QuickBooks Desktop to QuickBooks Online, you transmit much of the data from your company file without having to re-enter it manually. However, we need to ensure that your QuickBooks Desktop is updated. This is to avoid errors when transforming the files. 

1. Go to the Help menu and select Update QuickBooks Desktop.
2. Tap Get Updates to start the download.
3. When the download finishes, restart QuickBooks.
4. Accept the option to install the new release when prompted.

Please note that you can import a company file within 60 days after signing up to QuickBooks Online. 

Once done, follow the STEP 2 details when importing your data to QBO: Move your QuickBooks Desktop file to QuickBooks Online. 

However, If you converting your company data from the QuickBooks Desktop US to QuickBooks Online global is not possible. It only available for UK, US, and Canada versions. You'll need to export/import data manually or utilize a 3rd party app as a workaround.

Please check out these guides for details: 

• Move your lists to QuickBooks Online. 
• What to expect when you switch from QuickBooks Desktop to QuickBooks Online. 
• Import from QuickBooks Desktop and other software to QuickBooks Online

I'll lend a helping hand if you need further assistance. Keep safe always.