WordPress at a glance
filter is not described

woocommerce_coupon_code_generator_suffix filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_coupon_code_generator_suffix', 'filter_function_name_4368' );
function filter_function_name_4368( $string ){
	// filter...

	return $string;
}
$string
-

Where the hook is called

WC_Admin_Assets::admin_scripts()
woocommerce_coupon_code_generator_suffix
woocommerce/includes/admin/class-wc-admin-assets.php 297
'suffix'               => apply_filters( 'woocommerce_coupon_code_generator_suffix', '' ),

Where in WP core the hook is used WooCommerce

Usage not found.