Hello there, @mariana-tddgus-c.
As an insight, QBO is a cloud-based program that you can access anywhere as long as internet connection is available. Hence, all your data is being stored in the cloud where back-up is no longer needed.
However, if you want to have an accounting control by safeguarding data from accidental or unintended changes, check out our QuickBooks App store to browse a third-party application that works well for your business.
For future reference, visit this article to learn more about backing up and restoring your QuickBooks Online Advanced company.
I'm always here to guide you more if you need further help in managing your bank transactions and balances. Take care!
