WooCommerce: Disable “You cannot add another __ to your cart” Message

When a WooCommerce product is set to “Sold Individually”, you can only add 1 item to the cart. If you try a second time, you will get the “You cannot add another “%s” to your cart” error message, so that the customer is aware that there is already that product in the cart.

However, you may want to either edit the message wording or completely remove it, especially if you automatically redirect to cart or checkout upon add to cart.

So, let’s study how to do the latter, which is much more complex than using the ‘woocommerce_cart_product_cannot_add_another_message‘ filter for editing the message content. Enjoy!

PHP Snippet: Hide “You cannot add another product to your cart” Message @ WooCommerce Single Product / Cart Page

Unfortunately there is no way to just erase the message, so we need a workaround. And this requires adding an “Exception” so that the item is not added to the cart and no message is therefore returned.

/**
 * @snippet       Disable "You cannot add another ___" Woo Error Message
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 8
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_filter( 'woocommerce_add_to_cart_sold_individually_found_in_cart', 'bbloomer_no_message_if_already_found_in_cart' );

function bbloomer_no_message_if_already_found_in_cart( $found ) {
	if ( $found ) {
		throw new Exception();
	}
	return $found;
}