How to create a product available for Quoting

A quotable product offering is different in one aspect of its creation from other products.

The majority of the process to craete a product is unchanged from the normal one, and informations about it can be found here
Managing orders, products and subscriptions

The key step in creating a quotable product offering is the following

When creating a product offering, at the "Price Plan" step, you need to leave unchecked the box relating the offline payments.

This will ensure that your product will display a button "Request a Quote" on it, when viewed in the marketplace