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Allow product purchase only ONCE in WooCommerce

Buy Product Only Once

The Problem

You have a product on your WooCommerce website or store, and you do not want your customers to be able to purchase that product more than once.

The Solution

All you need to do is add a custom function to your theme.

Here’s what you’ll need:

  1. WordPress Website.
  2. WooCommerce Plugin installed.
  3. My Custom Functions Plugin installed.

Installing and Activating “My Custom Functions” Plugin

1 – In your WordPress Dashboard navigate to Plugins and click Add New.

add new - Allow product purchase only ONCE in WooCommerce

2 – Search for “My Custom Functions” Plugin.

custom functions 1024x560 - Allow product purchase only ONCE in WooCommerce

3 – Locate My Custom Functions plugin and click Install Now.

install 1024x532 - Allow product purchase only ONCE in WooCommerce

4 – Click Activate.

activate 1024x506 - Allow product purchase only ONCE in WooCommerce

Adding a Function

1 – After successful installation, navigate to Settings => PHP Inserter.

php inserter - Allow product purchase only ONCE in WooCommerce

2 – Paste this code:

/**
* Disables repeat purchase for products / variations
*
* @param bool $purchasable true if product can be purchased
* @param \WC_Product $product the WooCommerce product
* @return bool $purchasable the updated is_purchasable check
*/
function sv_disable_repeat_purchase( $purchasable, $product ) {
// Don’t run on parents of variations,
// function will already check variations separately
if ( $product->is_type( variable ) ) {
return $purchasable;
}
// Get the ID for the current product (passed in)
$product_id = $product->is_type( variation ) ? $product->variation_id : $product->id;
// return false if the customer has bought the product / variation
if ( wc_customer_bought_product( wp_get_current_user()->user_email, get_current_user_id(), $product_id ) ) {
$purchasable = false;
}
// Double-check for variations: if parent is not purchasable, then variation is not
if ( $purchasable && $product->is_type( variation ) ) {
$purchasable = $product->parent->is_purchasable();
}
return $purchasable;
}
add_filter( woocommerce_is_purchasable, sv_disable_repeat_purchase, 10, 2 );
/**
* Shows a “purchase disabled” message to the customer
*/
function sv_purchase_disabled_message() {
// Get the current product to see if it has been purchased
global $product;
if ( $product->is_type( variable ) ) {
foreach ( $product->get_children() as $variation_id ) {
// Render the purchase restricted message if it has been purchased
if ( wc_customer_bought_product( wp_get_current_user()->user_email, get_current_user_id(), $variation_id ) ) {
sv_render_variation_non_purchasable_message( $product, $variation_id );
}
}
} else {
if ( wc_customer_bought_product( wp_get_current_user()->user_email, get_current_user_id(), $product->id ) ) {
echo <div class=”woocommerce”><div class=”woocommerce-info wc-nonpurchasable-message”>You\’ve already purchased this product! It can only be purchased once.</div></div>;
}
}
}
add_action( woocommerce_single_product_summary, sv_purchase_disabled_message, 31 );
/**
* Generates a “purchase disabled” message to the customer for specific variations
*
* @param \WC_Product $product the WooCommerce product
* @param int $no_repeats_id the id of the non-purchasable product
*/
function sv_render_variation_non_purchasable_message( $product, $no_repeats_id ) {
// Double-check we’re looking at a variable product
if ( $product->is_type( variable ) && $product->has_child() ) {
$variation_purchasable = true;
foreach ( $product->get_available_variations() as $variation ) {
// only show this message for non-purchasable variations matching our ID
if ( $no_repeats_id === $variation ) {
$variation_purchasable = false;
echo <div class=”woocommerce”><div class=”woocommerce-info wc-nonpurchasable-message js-variation- . sanitize_html_class( $variation ) . “>You\’ve already purchased this product! It can only be purchased once.</div></div>;
}
}
}
if ( ! $variation_purchasable ) {
wc_enqueue_js(
jQuery(‘.variations_form’)
.on( ‘woocommerce_variation_select_change’, function( event ) {
jQuery(‘.wc-nonpurchasable-message’).hide();
})
.on( ‘found_variation’, function( event, variation ) {
jQuery(‘.wc-nonpurchasable-message’).hide();
if ( ! variation.is_purchasable ) {
jQuery( ‘.wc-nonpurchasable-message.js-variation-‘ + variation.variation_id ).show();
}
})
.find( ‘.variations select’ ).change();
);
}
}
add_action(‘init’, ‘only_one_login’);
Here:

paste here 1024x646 - Allow product purchase only ONCE in WooCommerce

3 – Click “ON” button.

on btn 1024x543 - Allow product purchase only ONCE in WooCommerce

4 – Click “Save Changes” button.

save btn 1024x548 - Allow product purchase only ONCE in WooCommerce

That’s it! You have successfully implemented a function in WooCommerce that prevents users from buying a product more than once.

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Shekhar
July 26, 2019 10:51 pm

I want to enable this for only certain products (better if category), not all. Will this do the job?
Thanks.

Sorin Marta
Admin
Reply to  Shekhar
August 11, 2019 5:02 am

Hi Shekhar,

Unfortunately, this snippet can’t do that. It was built to apply to all the products.

We could customize that for you, if you are interested in that customization, here you have a link to our service page:

https://memberfix.rocks/memberfix/

Thanks!
Sorin

josue
josue
June 12, 2020 5:16 am

i did it and worpress just crash i almost loose my page

Francisco
Francisco
August 5, 2020 5:55 pm

I think you have a little issue in the code, the last 2 lines.
this:

}
add_action(‘init’, ‘only_one_login’);
Victor Barannik
Reply to  Francisco
December 27, 2020 12:13 pm

Hello Francisco,

Thank you, that’s correct. You need to remove the last “}” symbol.

Ivan
November 12, 2020 7:42 pm

Help this crashed my site. Don’t know how to get it back!

Victor Barannik
Reply to  Ivan
December 27, 2020 12:18 pm

Hello Ivan,

Sorry for such a late reply. If it still actual: first of all, you need to disable the plugin using FTP or file manager.

To do it you need to navigate to ‘yourwordpresswebsite/wp-content/plugins’ directory and disable the necessary plugin by renaming its folder.

Then you need to fix the script removing the last “}” symbol.