woocommerce_coupon_code_generator_character_length filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_coupon_code_generator_character_length', 'filter_function_name_3073' );
function filter_function_name_3073( $8 ){
	// filter...

	return $8;
}

$8

-

Where the hook is called

'char_length'          => apply_filters( 'woocommerce_coupon_code_generator_character_length', 8 ),

Where in WP core the hook is used WooCommerce