How to add a field from the Woo Checkout Field plugin to the client's billing address?

Question

WooCommerce

There is an additional field (Patronymic name) in the checkout, how can I add it to the Billing email address of the order letter?
Field - billing_last_name_two

Answer 1

I suffered for a long time, through the plugins it did not work out as I wanted. Add. fields added through SAPHALI WC.
This solution saved me https://gist.github.com/crmplease/13b0afde81c07174...
Do not forget to create the middle_name field itself in the payment section before testing.