I had a similar incident last night. The power went out in the middle of working on a large estimate and now I have to try and redo it.
If you found a solution, please let us know.
QB should have an auto backup but they don't.
Thanks for posting here in the Community.
As mentioned by @john-pero, QuickBooks Online (QBO) only saves information that you've saved. I'll pass this along to our product developers' team to let them know of your business needs.
In the meantime, you can manually recreate your invoice.
For future reference, please check this article in case you want to restore a deleted transaction: Use the audit log to re-enter deleted transactions.
Let me know if you need further assistance, We're always right here to help.
1. Change your computer sleep settings to remain awake always - this will use more battery life on a laptop so you would want to plug it in.
This does not prevent data loss during a power outage or a loss of internet service.
You can try downloading the desktop app of QBO while not guaranteeing you can work "offline" it might possibly save before sync - which would be what you need.
2. Create your invoices in Excel, which if you use the Office 365 version.can autosave while you work. Then import the excel sheet into QBO. You will need a third party app or be subscribed to QBO Advanced for ability to import more than just lists.
Just one more example of why Quickbooks is a piece of crap.
Shall we talk about the built-in browser that shouldn't even be part of the product?
Hasn't been improved in over 10 years.
I can provide which built-in browsers you'll need to access QuickBooks Online (QBO), WileyOne.
We encourage all QBO customers to use supported browsers. It will help ensure you'll get the best out of your QuickBooks experience.
Feel free to read through this page to know the basic requirements for your computer: System requirements for QuickBooks Online, Accountant, and QuickBooks Self-Employed. It will also tell you to use the browser health checkup tool to know if your current web-browser is compatible.
Stay in touch with me if you need anything else. I'm always right here to help improve your QuickBooks experience.