Invoice auto numbering is incorrect

Hello, User27278.

This happens when you manually enter invoice numbers. QBSE automatically enters the invoice number sequentially.

You'll want to look back and review to verify if any numbers have been duplicated and correct them. Once you identify the last number, start the next invoice so that moving forward invoice number will be correct.

I also recommend visiting our website for more tips and other resources you can use in the future: The QuickBooks Help page.

You can always post again in the Community if you need more help doing tasks in the QBSE account.

This doesn’t explain why the auto numbering would go from the 30s back down to the 20s. 

I appreciate your time to comment on this thread, ogreentreestudio8.

I've checked and found out that other users reported about invoice numbers reversing to the previously used numbers as well. Our engineers are already aware of this issue, but there isn't a turnaround time yet.

If you haven't already, please contact our QBSE Chat Support so can link your account to the open ticket for immediate dates. They have the tools and can ask for your account details in a more secure environment.

I'm also including this article for your additional reference: Create invoices in QuickBooks Self-Employed. It provides steps for creating an invoice using different devices.

Please don't hesitate to reach out if you have any other concerns with your invoices. I'm just around to help.