Although you can edit the "Additional Details" section of Shopify's order information from the admin screen, you cannot add new items. Therefore, when you want to add items, you can use Matfixify.
How to use Matrixify to add "Additional Details" that cannot be added directly from the admin screen
[Setup Procedure] Use Matrixify to create a CSV file that extracts only the columns necessary to update product information, add values, and reflect them in the data (upload CSV).
