Patent ID: 8433437

Claim:
A materials handling facility, comprising: a plurality of destinations for items picked from the materials handling facility; a control system configured to: assign a list of items to be picked from the materials handling facility to an agent of the materials handling facility, wherein the list of items includes items for two or more of the destinations in the materials handling facility; assign a receptacle to each of the destinations for the list of items to be picked, wherein each receptacle has a mote comprising a communications interface for communicating with the control system, wherein the mote is coupled to a sensor configured to detect placement of an item in the receptacle; direct the agent to a location in the materials handling facility for a particular item to be picked; determine if the item is placed in the correct receptacle assigned to the destination of the item in response to detection of placement of the item in one of the receptacles by the sensor on the receptacle; and if the item is placed in an incorrect receptacle, indicate to the agent that the item was placed in the incorrect receptacle.