Add a new field to the checkout; Add that new field to the order.
WooCommerce Code Reference
The hooks that are displayed below the order form · woocommerce_checkout_order_review · woocommerce_review_order_before_payment ...
Update 2 Only For Woocommerce 3+ (added restriction to execute the code only once). add_action('woocommerce_thankyou', 'enroll_student' ...
For this three possibilities: If you really want to do it on order place you would have to use the hook: woocommerce_new_order. However I ...
WooCommerce Customizers: the Visual Hook Guide is back :)Here's a visual
do make available a list of all WooCommerce actions, filters and hooks.
Your order · Cheque Payment Please send your cheque to Store Name, Store Street, Store Town, Store State / County, Store Postcode. · Visa, Visa Debit, ...
Adding a WooCommerce custom order action is pretty straight-forward.
From your account dashboard you can view your recent orders, manage your shipping and billing addresses and edit your password and account details.