update_option_woocommerce_tax_classes update_option_woocommerce_tax_classes Share this:TweetLike this:Like Loading... Hook Type: actionSee hook in action See this hook used in plugins:Select Pluginwoocommerce.3.4.4woocommerce.3.4.5woocommerce.3.4.6woocommerce.3.4.7woocommerce.3.5.0woocommerce.3.5.1woocommerce.3.5.2woocommerce.3.5.3woocommerce.3.5.4woocommerce.3.5.5woocommerce.3.5.6woocommerce.3.5.7woocommerce.3.5.8woocommerce.3.6.1woocommerce.3.6.2woocommerce.3.6.3woocommerce.3.6.4woocommerce.3.6.5