Thanks for joining this thread, 123145884581829.

To ensure that we're on the same page, may I know if you're trying to create an early settlement/payment discount? If so, you can turn on the Discount feature to easily apply a reduction to an invoice or sales receipt for prompt payment. I'll guide you how:

1. Go to the Gear icon, then choose Account and Settings.
2. Select the Sales tab on the menu.
3. In the Sales form content section, select the Edit icon.
4. Toggle the Discount option.
5. Click Save and then Done.

After that, go back to the invoice and apply the discount once your customer plans to pay you early. Here's how:

1. Select Sales from the sidebar menu.
2. Head to the Invoices tab.
3. Locate and open the appropriate invoice.
4. Below the Subtotal section, choose Discount percent or Discount value from the drop-down arrow.
5. Enter the discount amount
6. When you're done, click Save and Send so your customer will be updated with the changes on the invoice.

In addition, here's an article that you can read to be guided in entering customer payments in QuickBooks Online: Record invoice payments.

Don't hesitate to let me know if you need more help in handling your other sales transactions. Just add the details in the comment section and I'll get back to you.