Let's proceed with troubleshooting first the app to isolate data damage, Kerim.
Follow these steps if you're an Android user:
- Open your device Settings.
- Select Apps (varies by device).
- Choose the QuickBooks app from the list, then select Storage.
- Select Clear data.
- Power down and restart your device.
If you're using the iOS version, I recommend contacting our live support team. Our representative has the tools to check your account, find the cause of the invoice issue, and provide a resolution.
For now, please utilize your phone's web browser when sending an invoice.
If you're an iOS user, you can refer to this article about generating reports: Run a Profit & Loss report using the QuickBooks Online app (iOS only).
Feel free to reply or post in this forum if you have other questions about invoices in QBO.