Make a product only available in a package
Some users have wanted to make specific products only available in a Package and not available for individual purchase.
Packages do require that you only use existing products. However, in Sunshine any product that does not have a price (left blank) is not available for purchase. If you set a price to “0”, then it is offered for free. So create a product, leave the price field empty, then you can use that product when building your package but it will not be available for individual purchase.