Cart Items for Product Quantity

function bbloomer_split_product_individual_cart_items( $cart_item_data, $product_id ){
  $unique_cart_item_key = uniqid();
  $cart_item_data['unique_key'] = $unique_cart_item_key;
  return $cart_item_data;
}
add_filter( 'woocommerce_add_cart_item_data','bbloomer_split_product_individual_cart_items', 10, 2 );
// -------------------
// 2. Force add to cart quantity to 1 and disable +- quantity input
add_filter( 'woocommerce_is_sold_individually', '__return_true' );