I think you should refer to the official Woocommerce documentation.

Would you check the link below?

https://docs.woocommerce.com/

See the link below for Woocommerce actions and filters.

https://docs.woocommerce.com/wc-apidocs/hook-docs.html

Thank you.

Do you want to add a field from the Woocommerce registration form?

You can get a more accurate answer if you give a clear idea of how you actually want to do it.

If you use the woocommersce_register_form action or the woocommersce_register_form_start action that is shown in the link you posted,

You can edit the ukerm membership form.

Add the code to the Theme functions.php file.

Wordpress Admin -> Appearance -> Add the code to the bottom of the functions.php file in the Theme Editor.

Thank You.

function Woo_register_fields() {?>

*

<?php
}
add_action( ‘woocommerce_register_form_start’, ‘Wooregister_fields’ );

워드프레스 사용자 내보내기 가져오기 관련된 플러그인이 많지는 않은 듯합니다.

하나의 플러그인으로 해결이 안 되면 여러 플러그인을 사용하셔야 할 듯합니다.

https://ko.wordpress.org/plugins/cimy-user-manager/

https://ko.wordpress.org/plugins/export-user-data/

https://ko.wordpress.org/plugins/import-users-from-csv-with-meta/

위의 플러그인들을 설치해서 확인해보시겠어요?

우커머스 회원가입 필드는

아래 플러그인을 설치해서 사용해보시겠어요?

https://wordpress.org/plugins/woocommerce-extra-accounts-fields/

직접 코드를 추가하실 수 있으시다면

아래 링크들도 참고해보세요.

https://gist.github.com/pietromalerba/5c8e8650152b9e58ccb7

https://www.cloudways.com/blog/add-woocommerce-registration-form-fields/

고맙습니다.