A sales order is generated when a customer places an order in your Magento store. Once the payment is received, the status will change from pending to processing.
You can see all your orders by navigating to Sales > Operations > Orders via the Admin sidebar. Clicking on View in the action column lets you view the order. From there you can see information regarding the orders, including the customer information, billing information, and shipping details.
Orders that are in a pending state can still be edited by clicking on the Edit button in the top right corner. But once the status changes to processing, edits can’t be made anymore.
Magento also lets you take mass actions on orders in case you need to edit orders in bulk. To do that, you will need to purchase a Magento order management extension. The Mass Order Actions extension allows you to take actions on multiple orders at the same time, which can eliminate a lot of repetitive work.