I'm glad to see you reaching out to Community. Welcome! Ensuring your transactions are recorded accurately is vital for matching them with your bank and reconciling with ease. QuickBooks Online has the features you need with the ability to add or edit items when needed. I'd be happy to help!
To add a new payment method to a sales receipt, follow these steps:
1. From the left menu, select +New
2. Choose Sales Receipt
3. Enter the Customer name
4. Using the drop-down in the Payment Method, click +Add new
5. Hit Save when done
You're all set!
If you have additional questions or concerns, please reach back out. We'd be glad to assist!