WordPress at a glance
filter is not described

woocommerce_checkout_coupon_message filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_checkout_coupon_message', 'filter_function_name_2298' );
function filter_function_name_2298( $html ){
	// filter...

	return $html;
}
$html
-

Where the hook is called

In file: /templates/checkout/form-coupon.php
woocommerce_checkout_coupon_message
woocommerce/templates/checkout/form-coupon.php 26
<?php wc_print_notice( apply_filters( 'woocommerce_checkout_coupon_message', esc_html__( 'Have a coupon?', 'woocommerce' ) . ' <a href="#" class="showcoupon">' . esc_html__( 'Click here to enter your code', 'woocommerce' ) . '</a>' ), 'notice' ); ?>

Where in WP core the hook is used WooCommerce

Usage not found.