Hi, Ryan. Thanks for bringing this to our attention.

Before we begin, could you please share the specific error message you encountered and which app you were using (QBO desktop, iOS, or Android) when it occurred? This will help us investigate and provide a more accurate solution.

For now, let's clear the app data on your device to refresh its stored settings and resolve any issues stopping you from saving invoices.

To do this on the desktop app:

1. Click the Help menu.
2. Select Reset your app data.
3. Reopen the app and attempt to save your invoices.

If the same issue happens, ensure the app is updated to the latest version. If it isn’t, please uninstall and reinstall the app.

To clear app data on mobile devices:

For Android:

1. Open Settings.
2. Select Apps or Apps & notifications.
3. Find and tap QuickBooks Online (QBO).
4. Tap Storage or Storage & Cache, then select Clear Data (or Clear Storage).
5. Confirm if prompted.

For iOS:

1. Open Settings and tap General.
2. Select iPhone Storage and find the QBO app.
3. Tap Offload App to free up storage without deleting your data.

Alternatively, please ensure your device’s operating system is updated to the latest version or uninstall and reinstall the app.

If the issue persists after following all these steps, I recommend contacting our Live Support team, as they have the tools and capabilities to thoroughly examine the cause of the errors and resolve them promptly.

In the meantime, you can do your invoices and access your QuickBooks through a web browser.

Please leave us a response if you have other questions or concerns.