In the case that a house account sends a payment greater than the outstanding balance or if a customer wishes to have a credit, the Floranext POS has the option to add a Credit to a house account. When a new order is charged to the house account, any credit will be applied to the outstanding balance.
First, a house account should be created if it doesn't already exist. Then go to Reports > House Account and select the customer.
On the House Account detail page, select Apply Payment and simply enter the total payment amount in for Total Payment. If a payment amount is entered that is in excess of what is outstanding, the remaining amount will fill in the 'Credit' field. Once the payment total shows it is distributed between unpaid invoices and 'Credit' as you wish, click submit payment.