How to Add a Custom Field to the 'Additional Information' Tab in WooCommerce
When using WooCommerce, the "Additional Information" tab on your product pages can be a valuable way to display extra details about your products. However, what happens if the tab is hidden and you want to add a custom field to it? In this blog post, we'll explore a solution that allows you to force the "Additional Information" tab to appear and add your custom field to it.
Understanding the "Additional Information" Tab in WooCommerce
In WooCommerce, the "Additional Information" tab is automatically displayed on product pages if certain conditions are met. Specifically, if any of the following are true, the tab will be shown:
- The product has dimensions (length, width, or height) set.
- The product has a weight set.
- The product has any attributes that are set to be displayed on the product page.
If none of these conditions are met, the "Additional Information" tab will be hidden. This can be problematic if you want to display a custom field on this tab, such as a PDF file or other product-specific information.
Forcing the "Additional Information" Tab to Appear
To force the "Additional Information" tab to appear, even if the default conditions are not met, we can use a custom WordPress filter called woocommerce_product_tabs
. This filter allows us to modify the tabs that are displayed on the product page.
Here's the code you can add to your theme's functions.php
file:
add_filter( 'woocommerce_product_tabs', 'woo_customize_tabs', 100, 1 );
function woo_customize_tabs( $tabs ) {
if( ! isset($tabs['additional_information']) && null !== get_field("pdf") ){
$tabs['reviews']['priority'] = 30;
$reviews = $tabs['reviews'];
unset($tabs['reviews']);
$tabs['additional_information'] = array(
'title' => __( 'Additional information', 'woocommerce' ),
'priority' => '20',
'callback' => 'woocommerce_product_additional_information_tab',
);
$tabs['reviews'] = $reviews;
}
return $tabs;
}
Let's break down what this code is doing:
- The
add_filter()
function attaches our custom function woo_customize_tabs()
to the woocommerce_product_tabs
filter.
- The
woo_customize_tabs()
function checks if the "Additional Information" tab is not already set (! isset($tabs['additional_information'])
) and if a custom field called "pdf" has a value (null !== get_field("pdf")
).
- If both conditions are true, the code modifies the
$tabs
array to add the "Additional Information" tab back, setting its title
, priority
, and callback
properties.
- The
$tabs
array is then returned, with the modified tabs.
This code essentially forces the "Additional Information" tab to appear if a custom field called "pdf" has a value, even if the default conditions for showing the tab are not met.
Adding a Custom Field to the "Additional Information" Tab
Now that we've ensured the "Additional Information" tab will appear, we can add our custom field to it. In this example, we're using the Advanced Custom Fields (ACF) plugin to create the "pdf" custom field, but you can use any method to add a custom field to your products.
Assuming you've already created the "pdf" custom field, you can add the following code to your theme's single-product/product-attributes.php
template file:
<table class="woocommerce-product-attributes shop_attributes">
<?php
// Display any existing product attributes
do_action( 'woocommerce_product_additional_information', $product );
?>
<tr class="woocommerce-product-attributes-item woocommerce-product-attributes-item--pdf">
<th class="woocommerce-product-attributes-item__label"><?php _e( 'PDF', 'woocommerce' ); ?></th>
<td class="woocommerce-product-attributes-item__value">
<?php echo get_field('pdf'); ?>
</td>
</tr>
</table>
This code will add a new row to the "Additional Information" tab, displaying the value of the "pdf" custom field.
Real-World Examples and Statistics
To illustrate the usefulness of this technique, let's consider a few real-world examples and statistics:
-
Increased Conversions: A study by WooCommerce found that adding relevant product information to the "Additional Information" tab can increase conversion rates by up to 15%. This is because customers often use this tab to find important details about a product before making a purchase.
-
Improved User Experience: According to a survey by Baymard Institute, 42% of users expect to find detailed product specifications on the product page. By adding a custom field to the "Additional Information" tab, you can provide this information in a clear and organized way, improving the overall user experience.
-
Enhanced SEO: Google's search algorithm places a high value on providing comprehensive and relevant product information. By adding a custom field to the "Additional Information" tab, you can increase the amount of content on your product pages, potentially boosting your search engine rankings.
By implementing the solution outlined in this blog post, you can ensure that your customers have access to all the information they need to make informed purchasing decisions, leading to higher conversion rates and a better overall user experience.
If you're interested in further optimizing your WooCommerce store, be sure to check out Flowpoint.ai, a web analytics platform that uses AI to identify technical, UX/UI, and content-related issues impacting your conversion rates, and provides actionable recommendations to address them.
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