Hi there paul157,
Importing data into QuickBooks Online is a fantastic option when you're migrating from another accounting software. @Lourdes-Fernandez has provided you with a ton of comprehensive articles on how and what you can import but I want to provide you with some additional information.
Reports in QuickBooks Online pull from the data that you've entered into the program. The Accounts Receivable Aging Summary or Detail report shows unpaid invoices you've entered, grouped by days past due. While you won't be able to directly import the report to bring the data into QuickBooks, you do have the option to import those invoices, which will then allow QBO to populate the correct data within the reports. You'll find the steps to do that from the articles that were linked in the reply above.
I know that importing reports into QBO would be a helpful feature. Letting our product development team know how this would be beneficial allows them to work it into the improvements they are making to the program. Have your voice heard by selecting the Gear icon then Feedback.
Have a great week!
