Custom meta key not working

Hi, so I have tried desperately to create a custom meta field to get exported with this plugin but without any luck. I have created a custom field in the product general section, where I can input an image file name. The snippet code is below

// Display Fields
add_action('woocommerce_product_options_general_product_data', 'woocommerce_product_custom_fields');
// Save Fields
add_action('woocommerce_process_product_meta', 'woocommerce_product_custom_fields_save');
function woocommerce_product_custom_fields()
{
    global $woocommerce, $post;
    echo '<div class="product_custom_field">';
    // Field function
    woocommerce_wp_text_input(
        array(
            'id' => '_custom_image_name',
            'placeholder' => 'Image file name (ex. name.png)',
            'label' => __('Image file', 'woocommerce'),
            'desc_tip' => 'true'
        )
    );
    echo '</div>';
}

function woocommerce_product_custom_fields_save($post_id)
{
    // Save function
    $woocommerce_custom_image_name = $_POST['_custom_image_name'];
    if (!empty($woocommerce_custom_image_name))
        update_post_meta($post_id, '_custom_image_name', esc_attr($woocommerce_custom_image_name));
}

As the code above provides a meta key with name _custom_image_name, once I populate it in product page, I add the meta field and do a test order. In the plugin, I add the meta key and do a test export and the result provides the meta key column empty. Could anyone please help with this? I tried getting it to work in the last 3 weeks without any luck.

• This topic was modified 5 years, 4 months ago by showtek.