WooCommerce Hooks: Actions & Practical Examples

By Karthi | July 28, 2026

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WooCommerce is well-known for its flexibility, especially in allowing customizations at the code level. A crucial aspect of this is WooCommerce hooks, small code snippets that let you change or expand functionality without modifying the core plugin. They allow for precise customisation of your store without needing to override templates.

If you’re new to the platform, it helps to first understand what WooCommerce is and its key features before diving deeper into advanced customization techniques.

This article examines WooCommerce hooks and guides on using them effectively, along with several practical examples for better understanding.

What Exactly are WooCommerce Hooks?

WooCommerce hooks are particular points that allow you to insert custom code to modify the plugin’s behaviour.

It also allow you to automatically run functions at specific points in your store’s operations, such as displaying products, updating carts, or managing orders.

Woocommerce hooks come in two types:

• Action hooks: Enable developers to insert custom functions at specific events in the code, such as when a product is added to the cart or an order is placed.
  
• Filter hooks: Allow developers to modify data as it passes through different sections of the code. For instance, a filter could adjust the product’s price before it appears on the product page.
  

In straightforward terms, action hooks perform a task without returning data, whereas filter hooks receive data, modify it, and then return the altered data.

To use both action and filter hooks in WooCommerce, you need to define a callback function and register it using add_action() or add_filter(), depending on the behavior you want to perform.

Why Use WooCommerce Hooks?

WooCommerce offers tools to tailor nearly every aspect of your store, including the code. However, it is strongly advised not to edit core plugin files, as updates will overwrite any changes you make.

WooCommerce hooks enable you to modify your store’s behavior effortlessly without editing core files, ensuring your customizations persist through updates.

Here are just some of the things you can use them for:

• Adding custom elements like banners, notices, or upsell messages on product pages.
• Modifying fields during checkout by rearranging, adding, or removing them.
• Adjusting pricing rules or applying dynamic discounts and taxes.
• Implementing custom logic during order processing, like sending data to a CRM or triggering personalised email notifications after purchases.
• Displaying conditional messages on the cart, checkout, or product pages.
• Loading scripts or styles only on specific pages.

How to Use Hooks in WooCommerce?

To use hooks in WooCommerce, you will need to:

• Add the function to the hook: You will need to add the custom function to the hook using the add_action() or add_filter() function in WooCommerce.
• Identify the hook you want to use: Start by choosing the appropriate hook based on the behavior you aim to change or the function you want to implement.
• Create a custom function: Create a custom function that runs when the hook activates, customising its complexity as needed.

List of Common WooCommerce Hooks

While the complete list of WooCommerce hooks is available in the official documentation, we have highlighted some of the most commonly used ones below, organised by hook type.

1. Product Page Hooks

 woocommerce_before_single_product

This hook triggers before the main product content, typically used to add custom banners, notices, or promotional messages at the top of the product page.

woocommerce_before_single_product_summary

Use this section to include content before the product summary, like the product title, price, etc. It’s a perfect location for trust badges or discount details.

woocommerce_single_product_summary

A flexible hook situated in the summary section (covering title, price, rating, excerpt, add-to-cart, etc.). To update your online store’s look, you can remove, reorganise, or include new elements to these default parts.

woocommerce_after_single_product_summary

This hook triggers after the summary section, making it ideal for adding related products, extra tabs, or custom product details.

woocommerce_after_single_product

A footer hook that displays after all product content, perfect for showing footer messages, support contact info, or upsell prompts.

2. Shop and Archive Page Hooks

woocommerce_before_main_content

Fires before the main content of the shop or category page. Use it for custom headers, breadcrumbs, or promotional banners.

woocommerce_before_shop_loop

Executes before the product loop begins, making it ideal for showcasing limited-time offers, highlighting featured collections, or displaying store notices.

woocommerce_shop_loop_item_title

This hook triggers precisely at the location of the product title in the product grid. Use it to personalize titles with markup, incorporate icons, or add limited-time labels above the title.

woocommerce_after_shop_loop_item_title

Positioned right after the product title, this hook enables you to customize or rearrange the display of price and ratings, include stock indicators, or add trust signals like “Free shipping” or “30-day returns.”

woocommerce_after_shop_loop_item

This hook is ideal for introducing additional interactivity and call-to-action elements. It triggers after the complete product box appears in the loop, providing space for links or buttons without interfering with the main content.

3. Cart Page Hooks

woocommerce_before_cart

Use this hook to grab shoppers’ attention right before the cart form appears. It’s a great spot for promotional banners, displaying a free shipping threshold, or adding a progress bar toward a reward.

woocommerce_before_cart_table

This appears right before the cart items are shown. It can be used to add section headers, clarify cart policies, or remind users about bundled deals or quantity limits.

woocommerce_cart_contents

This hook is perfect for giving context to each cart item. It triggers for each entry, enabling you to display custom metadata like engraving notes, product fees, or delivery date choices.

woocommerce_after_cart_table

This position is ideal for promoting upsells or increasing conversions. You can incorporate a discount field, a donation checkbox, suggested add-ons, or related product recommendations here.

woocommerce_after_cart_totals

After totals are computed, this hook allows you to reinforce trust or encourage action. For instance, you might show a message like “Prices update in 5 minutes!”, explain shipping options, or boost buyer confidence with refund policies.

4. Checkout Page Hooks

woocommerce_before_checkout_form

This hook displays content immediately before the checkout begins. It is frequently used for login prompts, guest checkout notifications, or reminding customers to review their cart prior to completing their purchase.

woocommerce_checkout_before_customer_details

Runs right before the user enters billing and shipping information, making it a perfect place to include personalized tips, first-time buyer instructions, or tooltips that help with data entry.

woocommerce_checkout_after_order_review

Once users review their order, this hook enables you to insert final prompts or custom elements, like legal disclaimers, optional surveys, or a checkbox for terms of agreement.

woocommerce_checkout_update_order_meta

Functions that save data entered in custom checkout fields into order metadata when the order is submitted.

woocommerce_after_checkout_form

Complete this hook after a customer submits the checkout form. It’s ideal for loading third-party scripts, tracking conversions, or showing a post-checkout checklist or upsell offer.

Practical Examples of WooCommerce Hooks:

Having covered the basics, let’s look at some practical examples of applying WooCommerce hooks. We will walk you through three use cases we tested by editing our theme’s functions.php file.

Displaying a Custom Message on the Cart Page

We aimed to notify visitors that they would get free merchandise when placing orders exceeding 100. The following code snippet was incorporated into the custom plugin file:

function custom_cart_message() {

    echo '<p class="custom-message">Get free merchandise for orders over 100!</p>';

}

add_action( 'woocommerce_before_cart', 'custom_cart_message' );

Once the theme file was updated, a new notice appeared on the Cart page.

Custom message on the Cart page created with WooCommerce hooks

Modifying Default “Product Added to Cart” Notice

Next, we sought to improve the “Product added to cart” notification by including the product name to make it more engaging.

To accomplish this, we added conditions in the code to show different messages depending on the number of items added, and returned to the default notice if an error happens.

function custom_add_to_cart_message( $message, $products ) {

// If there are multiple products, create a generalised message

if ( count( $products ) > 1 ) {

return sprintf( ‘%d items have been added to your cart.’, array_sum( $products ) );

}

// For a single product, personalise with the product name

foreach ( $products as $product_id => $quantity ) {

$product = wc_get_product( $product_id );

$product_name = $product ? $product->get_name() : __( ‘Product’, ‘woocommerce’ );

if ( $quantity > 1 ) {

return sprintf( ‘Great choice! %d %s have been added to your cart.’,

$quantity, esc_html( $product_name ) );

} else {

return sprintf( ‘That’s a popular one! %s has been added to your cart.’,

esc_html( $product_name ) );

}

}

// Fallback to the original message if something goes wrong

return $message;

}

add_filter( ‘wc_add_to_cart_message_html’, ‘custom_add_to_cart_message’, 10, 2 );

The add_filter() function designates the priority with numbers (default is 10) and indicates the number of arguments passed to your function (usually 2).

To verify your hook works properly, consult the WooCommerce Hook Reference or examine the plugin files to understand its configuration. This will help you determine the right priority and the number of arguments needed.

After inserting the snippet into functions.php, our test site displayed the new personalized message each time a single item was added to the cart.

Custom “Product add to cart” message for a single item created with WooCommerce hooks.

When we tested adding multiple items, the notice automatically updated to display the correct message we set.

Custom “Product add to cart” message for multiple items created with WooCommerce hooks.

Adding Custom Text on a Product Page

Suppose you want to highlight a marketing message, such as urgency or a special feature, either above or below the product title. Using WooCommerce hooks allows you to do this without editing each product page individually.

As an example, we wanted to create a sense of urgency by showing a notice in red. Here’s the snippet we used:

function product_notice() {

echo ‘<p class=”custom-info” style=”color: red;”>Hurry! Limited stock available.</p>’;

}

add_action( ‘woocommerce_single_product_summary’, ‘product_notice’, 6 );

Once the theme file was updated, the product page showed the notice we set.

A custom notice on a single product page created with WooCommerce hooks

3. Best Free WooCommerce Themes For Your Online Store

Conclusion

WooCommerce hooks are vital tools that boost the platform’s flexibility and capability. Using Action and Filter hooks enables you to customize almost any part of your store without modifying core files. This method preserves your site’s security, makes updates easier, and offers the creative freedom to design a unique shopping experience.

Whether you’re implementing a simple promotional banner in the cart or overhauling the checkout process, hooks are your most reliable tool. Start with minor tweaks, test your changes in a staging environment, and over time, you’ll be able to tailor your WooCommerce store to meet any business requirements. To ensure optimal performance, security, and scalability for your store, choosing reliable WooCommerce hosting is highly recommended.