WordPress at a glance
filter is not described

woocommerce_coupon_is_valid_for_product filter-hook . WC 1.0

Check if a coupon is valid for a product.

Usage

add_filter( 'woocommerce_coupon_is_valid_for_product', 'filter_function_name_2553', 10, 3 );
function filter_function_name_2553( $product, $values, $that ){
	// filter...

	return $product;
}
$product(WC_Product)
Product instance.
$values
-
$that
-

Where the hook is called

WC_Coupon::is_valid_for_product()
woocommerce_coupon_is_valid_for_product
woocommerce/includes/class-wc-coupon.php 871
return apply_filters( 'woocommerce_coupon_is_valid_for_product', false, $product, $this, $values );
woocommerce/includes/class-wc-coupon.php 908
return apply_filters( 'woocommerce_coupon_is_valid_for_product', $valid, $product, $this, $values );

Where in WP core the hook is used WooCommerce

Usage not found.