How to Limit Buying One Item Only in WooCommerce

How to Limit Customer Buy One Product Only with WooCommerce

51 Comments / WooCommerce

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I have started using WooCommerce since year 2012 and i like it because it provides me many customized options to suit my needs or client requirement.

Case Study:One of the possible situation is where i need to disable the shopping cart. In this way, the customer only can buy one item, if the customer goes to another product and tries to buy it, the cart will be cleaned and the last item added.

 

Solution:

Open your theme functions.php, and put below code at the end.

add_filter( 'woocommerce_add_cart_item_data', 'woo_custom_add_to_cart' );

function woo_custom_add_to_cart( $cart_item_data ) {
global $woocommerce;
$woocommerce->cart->empty_cart();

return $cart_item_data;
}

Finally, save the file. And now you can test by adding new product to your existing cart with items, see whether it will added the latest product only and remove all previous products in the cart.

 

51 thoughts on “How to Limit Customer Buy One Product Only with WooCommerce”

  2. johnM

    Hello terry,
    I need the same thing but only for a specific product.
    For example i have n products A,B,C …W
    You can buy A to W in all the quantité you want and you can mixte them but the product Z can only be sale alone.

    I don”t find a solution.

    Do you think you could help me ?

    I am not very kind with code.

    Many thanks

    Regards

    JM

    Reply
  6. Marcelo

    Hi! I tried your code but surprisingly it didnt work. In the site I’m working on, the product is being added thru an A link using the url param “?add-to-cart=999”. May that be the cause? Looks like the filter you posted here cannot intercept the mentioned url param.
    Any ideas?

    Reply
  9. Jorge

    Hey Terry, I’m just wondering if you could respond this question:

    I need the same thing but only for a specific product.
    For example i have n products A,B,C …W
    You can buy A to W in all the quantité you want and you can mixte them but the product Z can only be sale alone.

    Best,
    Jorge

    Reply
  10. Alec

    Terry,
    Thanks for the code. Just what I was looking for!

    I also use your direct checkout. Really sweet plugin.

    Thanks for all your hard work helping us all out.

    Reply
  13. Luan Nguyen

    Jorge,
    Not sure if you still need to limit by product.
    Below is pseudocode.
    HTH.

    add_filter( ‘woocommerce_add_to_cart_validation’, ‘check_if_cart_has_product’, 10, 3 );
    function check_if_cart_has_product( $valid, $product_id, $quantity ) {
    $limit_product_id = 9999; //product Z id
    if ($limit_product_id == $product_id) {
    $cart = WC()->cart->get_cart();
    if (!empty($cart) && $valid){
    foreach ($cart as $cart_item_key => $values) {
    $_product = $values[‘data’];
    if ( $product_id == $_product->id ) {
    wc_add_notice( ‘Sorry. Only one item is allowed.
    If you would like to add another, please remove the item in the cart.’, ‘error’ );
    return false;
    }
    }
    }
    }
    return $valid;
    }

    Reply
  14. Tanuj

    hey nice article
    i want that customer can purchase only product from woo commerce in life time. Next time when visit shop page then automatically redirect to my account page

    Reply
  16. CC34

    Hi terrytsang.
    i have the same problem than johnM
    I need to sell one “Y” product in only one order.
    I want prevent my customer from bying another product with the “Y” product.
    Do you have an idea ?
    Thank’s a lot !

    Reply
  17. tg

    Hi
    Is it possible to change this code this way:
    Same happens as in your’s solution but not for the whole cart just for a specific category.

    So only one product is allowed to buy from a specific category?

    Reply

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  19. sunny

    Nice Code Man….

    Can we make it for category specific. e.g. the user can buy from one category at a time and if he navigate to another category the cart goes empty and new category products get added like now.

    Reply
  24. frankikos

    Hello, it’s a great article but I have a question: how can I limit one product by brand in the cart, using your logic this ?? I would like to do this?

    thank you
    Kiko – direct from Brazil

    Reply
  25. Erik

    Thank you very much for this! It worked perfectly! How can the code be modified to take the user to the cart instead of reloading the product page?

    My goal is to have the user taken to the cart immediately.

    Reply
  35. Ony

    I need to sell one “Y” product in only one order.
    I want to prevent my customers from buying another product with the “Y” product.

    Any solution?

    Reply
    1. terrytsang

      Hey Tau, thanks for your comment! Yes, this is possible – but unfortunately this is custom work, do contact me if you are interested to proceed. Thanks a lot for your understanding!

      Reply

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