Greetings Promise3,

I understand how your situation slows down your business tasks. I'm here to ensure you'll get past this. So, you can get back to working order.

To make the necessary changes, all you need to do is open the invoice and edit it accordingly. Once you've made the required adjustments, the invoice will display the balance due and the amount of payment made.

Please note that the best time to add existing invoices to projects is before they’re linked to a payment.

Here’s how to add an unpaid invoice:

1. Go to Sales and select Invoices.
2. Find and select the unpaid invoice.
3. Select Edit invoice.
4. Select the Customer ▼ dropdown. Then select the project.
5. Select Save.

To re-enable the setting for paid invoices, simply repeat the same steps. Add the paid invoice to the project, and then reconnect the payment to the invoice.

Additionally, you might find it helpful to check out this article to get more information: Add existing invoices to projects in QuickBooks Online.

After completing the payment process, you can find the balance due and the payment amount at the top right corner of the Invoice page.

If you require any further guidance or have any questions about QuickBooks Online, don't hesitate to ask. Our team is available 24/7 to provide you with the support you need.