It would be great to have the possibility to mark certain items as "quotable only". These items, you could add to basket, with the option to only submit quote/inquiry, where the checkout option is disabled.
In a B2B setting, we must often get prices or information on delivery time from our suppliers for unstocked or non-standard items before allowing the customer to place the order. Allowing customer to add these products to basket and submit quote, which generates the quote in ERP, would allow for a much smoother business handling for these cases. After we have processed the quote in the ERP, the quote is marked as "promotable", allowing the customer to convert the quote to an order, as per standard Sana functionality.
Currently, it's only possible to mark products as non-orderable (disabling any add to cart functionality), and use the "request product information" addon, which only works on a product-by-product basis, which means the customer must send in multiple forms when they are shopping for more than one product.