WooCommerce: Disable Attribute Select Unless Previous Is Selected (Variable Products)

On the single product page for a variable product, multiple dropdowns display so that users can select their desired attribute choice.

In certain cases, you’d want them to follow the exact top-to-bottom attribute order while they’re selecting a specific variation. With that I mean that you want them to select the first attribute first, then the second, then the third… basically you want to disable the “next attribute select dropdowns” unless the previous select changes to a value that is not null.

Better shown in an image than said, so here’s the GIF, and with that the PHP/jQuery snippet. Enjoy!

On a single variable product page load with more than 1 attribute, all selects but the first are disabled. As soon as you select the first attribute, the second becomes enabled, and so on. If you change your mind and null one of the selects, the following selects will get disabled once again.

PHP/JS Snippet: Disable Next Attribute Dropdowns If Attribute Is Not Selected @ Variable Product Single Product Page

 * @snippet       Toggle Attribute Selects @ Single Product
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 5
 * @community     https://businessbloomer.com/club/
add_action( 'woocommerce_before_single_product', 'bbloomer_disable_variable_product_selects_unless_previous_selected' );

function bbloomer_disable_variable_product_selects_unless_previous_selected() {
	global $product;
	if ( ! $product->is_type( 'variable' ) ) return; // exit if not variable
	if ( count( $product->get_available_variations() ) < 2 ) return; // exit if only 1 attribute
	wc_enqueue_js( "
		function toggle_attributes() {
			$('table.variations tbody tr').each(function(){
				if ($(this).prev().find('td.value select').val()=='') {
					$(this).find('td.value select').attr('disabled',true).val(''); // if previous has no value, disable and reset
				} else $(this).find('td.value select').attr('disabled',false);
		$('table.variations select').change( function(){
	" );

Where to add custom code?

You should place custom PHP in functions.php and custom CSS in style.css of your child theme: where to place WooCommerce customization?

This code still works, unless you report otherwise. To exclude conflicts, temporarily switch to the Storefront theme, disable all plugins except WooCommerce, and test the snippet again: WooCommerce troubleshooting 101

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Rodolfo Melogli

Business Bloomer Founder

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as an independent WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza. Follow @rmelogli

4 thoughts on “WooCommerce: Disable Attribute Select Unless Previous Is Selected (Variable Products)

  1. I love this code. Can we hide all the variable options and display: none? So only the first option will be visible, and the next option will appear once the user selects the previous option.

    1. Thank you! Yes, this is definitely possible, but I’m afraid it’s custom work. If you’d like to get a quote, feel free to contact me here. Thanks a lot for your understanding!

  2. Dear author,

    It seems that the plugin stopped working in the recent Woocommerce versions (I think 6.0). We would be grateful if you could check.

    Thank you,

    1. Works for me, sorry! Try switching theme and disabling plugins (except Woo) temporarily, and see if the snippet works?

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