woocommerce_removed_coupon │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_removed_coupon', 'wp_kama_woocommerce_removed_coupon_action' );

/**
 * Function for `woocommerce_removed_coupon` action-hook.
 * 
 * @param  $coupon_code 
 *
 * @return void
 */
function wp_kama_woocommerce_removed_coupon_action( $coupon_code ){

	// action...
}

$coupon_code

-

Where the hook is called

do_action( 'woocommerce_removed_coupon', $coupon_code );

Where the hook is used in WooCommerce

add_action( 'woocommerce_removed_coupon', array( $this, 'set_session' ) );