Order Editor
You can easily modify orders in your store using the Order Management for Magento 2 extension.
To edit an order in the left panel of your store admin page select Sales > Orders. In the orders list find an order you need to edit and press View button.
When the order page is opened, do not click on the orange button Edit. Otherwise, you will be given the suggestion to cancel the current order and create a new one.
To edit the order, click on the link Edit Section inside the order. You can edit the order sections one by one. To adjust any other order section, first finish editing the current section. To finish, press Submit or Cancel.
Edit Order & Account Information
To edit order status, order number, order date press an Edit Section button. The button is located near the current order number. Click Submit to save changes.
Edit Payment & Shipping Method
You can change the payment method for the order you are editing. Click Edit section near the headline Payment Information.
Edit Items Ordered
Press the button Edit section near the headline Items Ordered.
You can change the ordered items, their quantity, prices, tax rate, and discount amount.
Press the Preview button to view the recalculated order. To save the changed order, press Submit.
Press Remove to delete the chosen product form the list.
To add new products to the order, press Add Products. Select a product from the list and press Add Selected Products.