I've just lost all my information

Losing all data in QuickBooks Online isn't easy, @sb_mms. I've come to help you retrieve those lost transactions so you can get back to business in no time.

First, you'll want to ensure the correct account and login credentials. Otherwise, you can log in to your account using a web browser to verify if this data-related issue causes this problem.

In the meantime, let me guide you on how to remove the cache histories from your QBO app to sort out the issue with your transactions.

For iOS app:

1. Go to Menu and tap Help & Feedback.
2. Tap Refresh Data.
3. Tap Refresh to confirm.

For Android app:

1. Go to Menu, then tap More Options ⋮.
2. Tap Settings, then Refresh Data.
3. Tap YES to confirm.

Once done, you may also need to uninstall and reinstall the app if the issue persists. Here's an article as a guide: How to Download the QuickBooks Online Mobile App.

I'll share this article with you if you want to know more about the features you can access in the mobile app: Compare mobile app features.

Click the Reply button if you need more help with your QBO data. The Community always has your back. Take care always.