Managing Invoices and Payments
Invoices have two status fields, one for controlling its ledger posting, and one for tracking its processing status in your organization. The main status field could go from pending to ready, which causes it to be posted, and then he could be paid or written off. The processing status is an auxiliary status field that is currently used to track whether an invoice has been printed, and it can be used to store additional information such as whether the invoice has been sent, acknowledged, and etc. The processing status has no effect on ledger posting.
Invoice Adjustments are not considered part of an invoice total. Instead, they behave like payments on the invoice and are used for discounts such as early payment bonuses and fees such as late payment penalties. A positive adjustment counts towards paying the invoice, a negative adjustment increases the amount owed.