Invoices seem to have disappeared on the system

Hi there, @tracey43. We'll provide information to help you access customer invoices inside QuickBooks Online (QBO) mobile app.

Before anything else, know that the application accumulates temporary data, which can affect its performance when managing invoices inside the mobile app. We recommend clearing the app's data to revert it to its default function. We'll outline the steps to get you going.For Android devices:

1. Open Settings and select Apps.
2. Tap on the app you want to clear app data for and select Storage.
3. Select Clear data.

For iOS devices:

1. Open the Settings and click Settings.
2. Select General and then Tap on iPhone Storage.
3. Scroll down and tap on the QuickBooks Online mobile app.
4. Select the Offload App.
5. Tap Offload App again to confirm the action.

For more details, please see this page: Fix common errors in the QuickBooks Online mobile app for Android.

If the issue persists, we recommend contacting our Customer Care Team so they can conduct further investigation to determine the root cause of the problem. Feel free to visit this page: QuickBooks Support.

Moreover, here's an article to help you manage customer payments inside the mobile app: Receive an invoice payment using the QuickBooks Online mobile app.

Our team is always around 24/7 if you require further assistance fixing the mobile app to access and create invoices. Don't hesitate to comment below so we can lend a helping hand. Keep safe.