woocommerce_email_footer хук-событие . WC 1.0

Executes the email footer.

add_action( 'woocommerce_email_footer', 'action_function_name_7200' );
function action_function_name_7200( $email ){
	// action...
}

В файле: /templates/emails/customer-invoice.php

woocommerce_email_footer

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', null );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

do_action( 'woocommerce_email_footer', $email );

add_action( 'woocommerce_email_footer', array( $this, 'email_footer' ) );