Contacting the Sage Daceasy Support is the best thing we can do about the migration, tgranizo.
You can reach out to Sage Daceasy to inquire if they support migration to QuickBooks Online, as the QuickBooks Conversion Tool only works with Sage 50. They can offer advice on the migration process or suggest a third-party app that can be integrated with QuickBooks.
To learn more about importing data in QBO and the list that can converted with Sage, see these links:
If you have any other concerns about migration or any concerns with QuickBooks, please let me know. The Community team will always be here to help. Have a good one.