Use Admin Custom Order Fields to Streamline Order Processing and Details. Do you find yourself putting a lot of information in your “Order Notes” or using outside software, such as Excel, to keep track of order details? Say goodbye to all of the hassle of keeping track of order information in a million different places! The Admin Custom Order Fields extension will allow your team to use WooCommerce as a complete Customer Relationship Management system so order information is centralized where the orders actually happen — right within your WooCommerce dashboard.
WooCommerce - Admin Custom Order Fields v1.13.0