Arch is an e-commerce Drupal module.

We would like to keep the list of core features of Arch as short as possible.

Arch manages Products in Product types.

Merchants can define multiple Prices to Products with defined Price categories.

Price access control managed via Roles and Permissions based on Price types.

If product has multiple prices Price negotiator selects the price for customer based on permissions and price availability date range.

Customers can create an Order.