Customer keeps getting emails showing negative invoice totals, and there are no transactions to account for the negative totals being calculated.

We acknowledge the challenges you're facing with your negative invoice total, and I'm here to help you resolve this, @ThatsNinja.

A possible reason this is happening is due to a corrupted email. To rectify this, start by sending a dummy invoice to your customer using the original and a different email. If one of them works, please utilize that email for now in sending your invoices.

However, if the issue persists, I recommend contacting our support team for them to access your account in a safe environment and thoroughly find the root cause of your invoice issue. They possess the tools to further help you and provide a resolution.

Here's how to reach a live representative:

1. Log in to your QuickBooks Online Company.
2. Click on the Help button at the top of the page.
3. Choose the Search tab, then click Contact us.
4. Type in your concern, and click Continue.
5. Under Callback, click Have us call you button. This will route you to enter your details.
6. After that, select Get a call.
7. You will now be added to the queue and wait for us to call you.

Additionally, you can refer to this article about personalizing your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Let us know if you have other concerns with your invoices in QuickBooks. We're here to offer help to your needs.