The order page has fields for customer and operator comments. These are separate text fields for saving additional information associated with the order while working with an order. Comments are saved on the order card.
Information can also be sent to the above-mentioned fields via API, for example, from the website of your online store about specific order preferences expressed by a customer.
This article describes how to work with payments in an order, as well as the implementation of a 'cash on delivery' procedure for individual payment methods.