What happens when you receive a payment from your client outside of Ivy in the form of a check, cash, credit card, etc? It is easy to record that payment manually on the proposal or invoice. Here is how you can record a payment manually by clicking the "Add New Payment" button in the Payments section to the right of the invoice [or proposal].
Next choose your payment method and input the details of the payment. Click save and you are all set! You can always see the payment recorded by clicking "see details".