Picking system

A picking system comprising:

• a first automated warehouse configured to store products on a case-by-case basis;
• a transfer station connected to the first automated warehouse and configured to transfer stock products from cases into totes;
• a second automated warehouse connected to the transfer station;
• a third automated warehouse connected to each of the transfer station and the second automated warehouse;
• a picking station connected to the third automated warehouse;
• and
• a controller configured or programmed to receive orders and manage movement of the products;
• wherein
• the products include a first product having a high picking frequency and a second product having a picking frequency lower than the picking frequency of the first product;
• and
• the controller is configured or programmed to:
• cause the first product to be moved directly from the transfer station to the third automated warehouse and stored therein;
• cause the second product to be moved from the transfer station to the second automated warehouse and stored therein;
• and
• based on an order, cause the second product to be moved from the second automated warehouse to the third automated warehouse, and cause the first product and the second product included in the order to be moved continuously from the third automated warehouse to the picking station.