No points added when product is disabled for coupons.

hello, we have a function that disables certain products from being eligible for coupon discounts.
when a person buys one of this products, no points are added to their account.

is there a way to overcome this?

the code used:

1// Create and display the custom field in product general setting tab

2add_action( 'woocommerce_product_options_general_product_data', 'add_custom_field_general_product_fields' );

3function add_custom_field_general_product_fields(){

4    global $post;

5?

6    echo '<div class="product_custom_field">';

7?

8    // Custom Product Checkbox Field

9    woocommerce_wp_checkbox( array(

10        'id'        => '_disabled_for_coupons',

11        'label'     => __('Disabled for coupons', 'woocommerce'),

12        'description' => __('Disable this products from coupon discounts', 'woocommerce'),

13        'desc_tip'  => 'true',

14   ) );

15?

16    echo '</div>';;

17}

18?

19// Save the custom field and update all excluded product Ids in option WP settings

20add_action( 'woocommerce_process_product_meta', 'save_custom_field_general_product_fields', 10, 1 );

21function save_custom_field_general_product_fields( $post_id ){

22?

23    $current_disabled = isset( $_POST['_disabled_for_coupons'] ) ? 'yes' : 'no';

24?

25    $disabled_products = get_option( '_products_disabled_for_coupons' );

26    if( empty($disabled_products) ) {

27        if( $current_disabled == 'yes' )

28            $disabled_products = array( $post_id );

29   } else {

30        if( $current_disabled == 'yes' ) {

31            $disabled_products[] = $post_id;

32            $disabled_products = array_unique( $disabled_products );

33       } else {

34            if ( ( $key = array_search( $post_id, $disabled_products ) ) !== false )

35                unset( $disabled_products[$key] );

36       }

37   }

38?

39    update_post_meta( $post_id, '_disabled_for_coupons', $current_disabled );

40    update_option( '_products_disabled_for_coupons', $disabled_products );

41}

42?

43// Make coupons invalid at product level

44add_filter('woocommerce_coupon_is_valid_for_product', 'set_coupon_validity_for_excluded_products', 12, 4);

45function set_coupon_validity_for_excluded_products($valid, $product, $coupon, $values ){

46    if( ! count(get_option( '_products_disabled_for_coupons' )) > 0 ) return $valid;

47?

48    $disabled_products = get_option( '_products_disabled_for_coupons' );

49    if( in_array( $product->get_id(), $disabled_products ) )

50        $valid = false;

51?

52    return $valid;

53}

54?

55// Set the product discount amount to zero

56add_filter( 'woocommerce_coupon_get_discount_amount', 'zero_discount_for_excluded_products', 12, 5 );

57function zero_discount_for_excluded_products($discount, $discounting_amount, $cart_item, $single, $coupon ){

58    if( ! count(get_option( '_products_disabled_for_coupons' )) > 0 ) return $discount;

59?

60    $disabled_products = get_option( '_products_disabled_for_coupons' );

61    if( in_array( $cart_item['product_id'], $disabled_products ) )

62        $discount = 0;

63?

64    return $discount;

65}