Hi,

I'd like to have a double unit on the saleable products.

I'm not sure to be clear enough so I will explain more precisely the deal.

The product aimed to be sold is a service, charged for each place where it is implemented, and per year. Therefore, the price must depend on the number of place where it is implemented and the period of utilisation.

For instance a customer could buy this service for 3 different places and for 3 years.

Do you know a module allowing to do such things, or a simple way to do it with 'Sales' module ?

Thanks for your help