I'll gladly walk you through creating a receipt, jainvestments.
QuickBooks Online allows you to create receipts for when your customer pays an invoice. To begin, you'll need to receive the invoice payment first in QuickBooks. Here are the steps to do so:
Navigate to the +New button.
Select Receive payment receipt under Customers.
Locate the invoice you want to receive payment and create a receipt by entering a customer's name and ticking off the invoice.
Click Save and send.
You can then choose to email the receipt to your customer and print it for them.