Good evening! On mobile (android s23 ultra) I am intermittently loosing all invoices/customers/products etc. Completely random but lasts for weeks then works for 1 day

Hello there. I want to ensure you'll be able to see all your invoices, customers, and product information on the QuickBooks Online (QBO) mobile app. 

To start, let’s first log in to your QBO account via a web browser. Then, check all the customers, invoices, and products from there. If you're able to see all the information, let’s now eliminate the stored cache on your mobile device to refresh the background processes.

Here's how:

For iOS devices: 

1. Select the Menu icon at the top right.
2. Then, choose Help & Feedback. 
3. Next, click Refresh Data and Refresh. 

For Android devices: 

1. Tap the Menu icon at the top right.
2. Next, choose Settings. 
3. Then. click Refresh Data and select Yes.

However, if the same thing happens, you can uninstall and reinstall your QBO app to start fresh. 

You can also run the Audit Log report to check who made some changes to your account. Refer to this article: Use the audit log in QuickBooks Online.

I'm always here ready to lend a hand if you have any other concerns managing your account. Have a good one and stay safe.