WordPress at a glance
filter is not described

woocommerce_new_coupon_data filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_new_coupon_data', 'filter_function_name_9823' );
function filter_function_name_9823( $array ){
	// filter...

	return $array;
}
$array
-

Where the hook is called

WC_Coupon_Data_Store_CPT::create()
woocommerce_new_coupon_data
woocommerce/includes/data-stores/class-wc-coupon-data-store-cpt.php 77-89
apply_filters(
	'woocommerce_new_coupon_data',
	array(
		'post_type'     => 'shop_coupon',
		'post_status'   => 'publish',
		'post_author'   => get_current_user_id(),
		'post_title'    => $coupon->get_code( 'edit' ),
		'post_content'  => '',
		'post_excerpt'  => $coupon->get_description( 'edit' ),
		'post_date'     => gmdate( 'Y-m-d H:i:s', $coupon->get_date_created()->getOffsetTimestamp() ),
		'post_date_gmt' => gmdate( 'Y-m-d H:i:s', $coupon->get_date_created()->getTimestamp() ),
	)
),

Where in WP core the hook is used WooCommerce

Usage not found.