Bookings and Appointments For WooCommerce Premium – Bookable products cannot be added to the cart twice when WCML is active

Overview of the issue

When using Bookings and Appointments For WooCommerce Premium with WPML and WCML, it is not possible to add the same bookable product to the cart multiple times.

Attempting to do so results in the message:

«You cannot add another product name to your cart.»

Workaround

Please, make sure of having a full site backup of your site before proceeding.

• Add the following code to your theme’s functions.php file.

  // WPML Workaround for compsupp-8226 
  add_filter( 'wcml_add_to_cart_sold_individually', function( $allow, $cart_item_data, $post_id, $qty ) {
      $product = wc_get_product( $post_id );
      if ( $product && 'phive_booking' === $product->get_type() ) {
          return false;
      }
      return $allow;
  }, 10, 4 );