Hi thereNearly all my data is missing from the mobile app. I was using it on a job today, and it just clicked off. Still working on laptop. Mobile app not working

Thanks for dropping by here today, @dannykenmure. It's my pleasure to help you restore the missing files so you can utilize them on your QuickBooks Online (QBO) mobile application.

May I know if you logged in to your active company file in QuickBooks? If so, then refer to the following resolution below.  

I'll provide a potential rationale for why this might happen on your end. When the app's storage data is almost at its limit, features, data, and icons disappear. When this occurs, it typically impacts QuickBooks' performance on mobile devices.

To have this resolve, you can erase the cache from your application so that you can use it again with a clean slate and all of its capabilities at your convenience. I'll happily enter the following instructions so you may go on.

For Android users, these are the steps:

1. From your phone's settings, select Apps. A reminder, the option varies by device.
2. Choose the QuickBooks app from the list.
3. Select Storage, and then click Clear data.

For iOS users, here's how:

1. Select the menu at the top right corner of your device.
2. Next, choose Help & Feedback.
3. Select Refresh Data.
4. Click Refresh.

It's supposed to solve the problem and bring the missing data or icons back to your mobile application. However, if the problem continues, I've got this post for you with other solutions to your issue: Fix common errors in the QuickBooks Online mobile app for Android.

Additionally, I've got you this article to help you manage invoice payments in QuickBooks: Receive an invoice payment using the QuickBooks Online mobile app.

You can also visit this page to monitor the status of your invoices inside the mobile app: Track the status of invoices in the QuickBooks Online mobile app.

I'm entrenching for your success in getting this resolved, @dannykenmure. Please don't hesitate to mention me in the comment section below. I'll make sure to get back to you as soon as possible. We thank you for dealing with QuickBooks. Have a good day, and be safe!