I appreciate you for clarifying that you're using the green GoPayment app, comet52.

You can process payments for open invoices in person. The app automatically syncs the payment with the invoice in QuickBooks Online.

Here's how:

1. Open the GoPayment app.
2. Tap the Plus (+) and select Invoice payment.
3. Find the customer, or use the search field.
4. Select the existing invoice the customer is paying for.
5. Tap Charge and select a payment method.

For more details, please see this article: Process Payments in the GoPayment App.

After you process the payments, QuickBooks puts the money in your bank account. I'd suggest checking our deposit times. This helps you ensure the payments are properly tracked.

I'm still here if you have other questions with regards to managing your Go Payment app. I'll respond as soon as possible. Keep safe.