Order picking system comprising a paternoster conveyor and method of using such a system

A method of handling products in an order picking system comprising at least one transporter on one side of a paternoster conveyor and at least a plurality of further transporters on an opposite side thereof, the method comprising:

• accepting products from one of the at least one transporter or at least one of the plurality of further transporters;
• conveying the products to the other side of the paternoster conveyor;
• and
• depositing the products on at least one of the plurality of further transporters or one of the at least one transporter on the other side of the paternoster conveyor,
• wherein:
• the plurality of further transporters comprises a plurality of transport boxes that are configured to receive one or more than one product carried by the carrier, and said method comprises selectively placing one or more than one product in a pre-selected transport box of the plurality of transport boxes;
• and
• further comprising said paternoster conveyor selectively picking up and carrying a pre-selected transport box comprising one or more than one product previously received therein.