You need to run locally with the solution of your choice:
- WordPress as the CMS
- WooCommerce as active Plugin
- StoreFront as default Theme
Create a small WordPress/WooCommerce plugin which:
- Creates and saves a new text input field Carrier ID for the shipping methods
Flat-rate and Free-shipping in the WP-Admin > WooCommerce >
Settings > Shipping tab.
It should expand the existing fields:
- Flat-rate : Method Title, Tax Status, and Cost.
- Free Shipping : Title and Free Shipping Requires.
- Saving the value with the meta key _carrier_id in the order meta data of each order - when the order changes to the order status Processing ( wc-processing ).
- I created a separate plugin called Expand the shipping methods you can find it on the following path
[PROJECT_PATH]/wp-content/plugins/ExpandShippingMethods/index.php. - Once you installed the database or copy the plugin you have to enable it from wordpress dashboard.