It's good to see you here in the Community, @Mel1958.
Let's get your QuickBooks Self-Employed (QBSE) app working so you can send invoices to customers.
One of the possible reasons why QuickBooks not sending invoices is that the mobile app has a data issue, thus causing unusual behavior. To verify, let's reset the data of your mobile app to refresh the system. To do so, you can follow the steps below:
- Go to your phone Settings.
- Tap Apps and Notifications.
- Look for the QuickBooks Self-Employed app.
- Click Reset App Data.
If you get the same result, I suggest uninstalling and reinstalling the app to start fresh.
If the issue persists, I'd recommend reaching out to our QuickBooks Support Team. This way, they can further check on this matter and provide in-depth troubleshooting steps to get this resolved.
Just in case you want to learn more about categorizing transactions in QBSE, you can read this article for more guidance: Categorise transactions.
Don't hesitate to leave a comment below if you have other concerns or follow-up questions about managing invoices in QBSE. I'm always here to help.