Thanks for visiting the Community space, info253. Let's work together to fix the issue of why you're unable to load sales invoices in the QuickBooks Online (QBO) mobile app.
The app often keeps a cache to speed up your experience while performing your tasks. Once it's full of cache, your system may experience some unexpected behavior, like being unable to find this feature. It can also be caused by an outdated application. That said, let's perform some troubleshooting steps to fix these issues.
We can start by refreshing the data within the system or from the settings menu. It'll refresh the application to remove the older cache that causes this odd behavior.
For Android:
Go to the Menu ☰, then click the Gear icon.
Select Refresh Data.
Tap Yes.
For iOS:
Go to the Menu ☰ icon, then select Help & Feedback.
Tap Refresh Data.
Select Refresh.
However, if the issue persists, I suggest uninstalling and then reinstalling the mobile app. It allows you to use it on a clean slate. Follow the steps below to proceed: