I'll guide you, Vsdumptrucks.
In addition to what John-pero shared, you'll have to receive the payment manually, then select Cash or Check as the payment method. This will update the invoice status to paid.
Just follow these steps:
- Click the New or Plus sign (+) icon.
- Select Receive payment.
- Select the customer.
- Click the Payment method drop-down arrow, then select Cash or Check.
- Select the invoice to be paid, then click Save and close.
I'll also include the reference on how to record invoice payments in QuickBooks Online for more information.
We're just around to help you. Feel free to get in touch.