Order processing is the process or work flow from order placement to delivery. This is a key element of retail order fulfillment, where reliability and accuracy lead to customer satisfaction. Steps in order processing include picking, sorting, tracking and shipping.Some systems offer a two-way sync that makes sure order information is passed between your order management system and your ecommerce platform while providing you with visibility into the entire process. This can help automate the flow of sales order information to every piece of the supply chain.