How to Apply BOGO (Buy One Get One) Offer for Certain Product Variations in WooCommerce?

Suppose you own an online clothing store with various product variations such as colors and sizes. If you want to heavily promote a specific color of a shirt, you can use this customization to implement a clever buy one, get one (BOGO) offer. This offer activates when customers add that particular variation to their cart, giving you precise control over which variations benefit from the promotion within a single product listing. Let’s see how it works!

Solution: Apply BOGO (Buy One Get One) Offer for Certain Product Variations

This code snippet will implement BOGO (Buy One Get One) offers effectively based on specific product variations in WooCommerce.

add_action('woocommerce_cart_calculate_fees', 'ts_add_free_product_on_bogo_offer', 10, 1);

function ts_add_free_product_on_bogo_offer($cart) {
    if (is_admin() && !defined('DOING_AJAX')) {
        return;
    }

    // YOUR SETTINGS:
    $target_variable_product_id = 396; // ID of the variable product (Shirt)
    $target_variation_id = 411; // ID of the Blue Shirt variation
    $free_product_id = 470; // ID of the free product

    // Check if the targeted variation is in the cart
    $is_target_variation_in_cart = false;

    foreach ($cart->get_cart() as $cart_item) {
        if ($target_variable_product_id == $cart_item['product_id'] && $target_variation_id == $cart_item['variation_id']) {
            $is_target_variation_in_cart = true;
            break;
        }
    }

    // Add the free product to the cart if the targeted variation is found
    if ($is_target_variation_in_cart) {
        $found = false;

        // Check if the free product is not already in the cart
        if (sizeof($cart->get_cart()) > 0) {
            foreach ($cart->get_cart() as $cart_item_key => $values) {
                $_product = $values['data'];
                if ($_product->get_id() == $free_product_id) {
                    $found = true;
                    break; // Exit the loop
                }
            }

            // If the product is not found, add it to the cart
            if (!$found) {
                WC()->cart->add_to_cart($free_product_id);
            }
        } else {
            // If no products in the cart, add the free product
            WC()->cart->add_to_cart($free_product_id);
        }
    }
}

 

This to the shop owners who are running or planning to run BOGO offers on their WooCommerce store…

BOGO deals are great for increasing your sales, but have you thought about which offers are bringing you more revenue and which offers are not performing that great?

Don’t just set a BOGO deal, track the revenue generated by your deals in real-time with the Flexi BOGO for WooCommerce plugin.

Explore Flexi BOGO

Output

Let’s consider that a product ‘T- Shirt’ has 3 variations of color such as Blue, Green, and Red. As the product variations of Blue (variation_id: 411), and Green (variation_id: 412), are associated with the variable product with ID 396, and are defined in the code, when these products added to the cart, then the free products are also automatically added to the cart.

In the same way, you can apply BOGO offers considering many other factors as well. Refer to our post that will guide you well to automatically add a product to your WooCommerce cart based on 6 different conditions.